I'm looking for a meticulous professional who can convert a Google document into a Word document. The converted document should accurately reflect the original design without any loss of formatting. However, I also r...convert a Google document into a Word document. The converted document should accurately reflect the original design without any loss of formatting. However, I also require the inclusion of additional elements that were not present in the original. Specifically, the Word document should feature letters, in addition to the text from the Google doc. Ideal Skills: - Proficiency in Google Docs and Microsoft Word - Strong attention to detail - Experience with data conversion while maintaining the original formatting - Ability to insert new elements like letters int...
Basic Project Overview: This project aims to create an online shop where university students can purchase study aids. These include physically distributed course notes and past exam papers, as well as digital flashcards and detailed course summaries. The shop will seamlessly integrate digital and physical distribution methods. What We’re Selling: 1. Course Notes: • Concise summaries of lecture materials available as physical copies for pickup at designated university locations. 2. Flashcards: • Digital flashcards available through an app called Quizlet, enabling students to review and memorize important terms and concepts from their course notes wherever they are. 3. Past Exam Papers with Answers: • Physical copies of previous exams complete with correc...
I require the assistance of a skilled professional in web data scraping from Website 1. Your primary task will be to extract contact details. Upon successful scraping, these data needs to be cleaned and formatted before being delivered in an Excel sheet. The ideal candidate for this job would have solid experience in data mining, data cleaning and Excel. Skills and Exper...assistance of a skilled professional in web data scraping from Website 1. Your primary task will be to extract contact details. Upon successful scraping, these data needs to be cleaned and formatted before being delivered in an Excel sheet. The ideal candidate for this job would have solid experience in data mining, data cleaning and Excel. Skills and Experience: - Data Scraping - Data Cleaning - Microsoft Excel p...
I'm in need of an expert in Microsoft Word for a fast-paced project. The project revolves around creating a Microsoft Word document, primarily focused on two aspects: - Text formatting: I look forward to having a professional text set-up in the document. Experience around crafting and formatting compelling text is savvy. - Page layout: I want the document to be organized in a proper page layout. Therefore, strong proficiency in page layout designing is a must. The document will include text only and tables/charts, however, no images. Hence, being skillful at incorporating tables and charts in an informative and engaging way will be beneficial. I need this job completed ASAP, so time-efficiency without compromising the quality of work is crucial. Therefore, previo...
I require a Google document to be converted into a Microsoft Word document. The converted file should have a standard business formatting applied. The document includes images that need to be transferred accurately. Key requirements: - Convert a Google Document to a Microsoft Word document - Apply standard business formatting - Accurately transfer images from the Google doc to Word Ideal Skills: - Experience in document conversion - Proficiency in Microsoft Word - Knowledge of proper business formatting - Ability to transfer images accurately
I'm in need of an experienced Laravel and React developer to help create a comprehensive in-house question bank system for our educational institution. The system needs to be able to: - Manage users: Different access levels and permissions are a must. This includes Admin, Teacher, and Data Entry. - Create and manage large question databases: - Add, edit, categorize, and manage a large database of questions. - Select questions from the question bank to create custom worksheets and exams. - Preview questions before generating worksheets. - Creation and management of question categories, tags, and metadata. - Sharing worksheets with other teachers within the system. - Generated PDF with options for formatting, layout, and inclusion of ...
Hello to all , I am in search of a talented individual who can create an engaging and high-quality documentary titled “The Life and Success of a Wealthy Individual.” This documentary should fully portray the life and success story of a prominent figure within a 12 to 15-minute timeframe. I will provide the name of a wealthy individual, and you will need to comprehensively and captivatingly showcase the strategies and actions that have led them to this level of wealth and success. Additionally, this documentary should include links to the sources used for research, allowing viewers to access the original materials. If you are an experienced documentary artist and are interested in this project, I would be delighted to hear from you and collaborate on creating a...
General purpose The purpose of the application is to enable users to register their device with a central database. The device can only be registered if at least two matching values exist in the database (IMEI and IMSI) The IMEI...least two matching values exist in the database (IMEI and IMSI) The IMEI and IMSI pair must be imported by the administrator. Users can further update records including private and public records as well as deregister a device which belongs to them. General users, by scanning the OR code available on the device, can retrieve the “public” information which the device owner provided for public access. The aim is to connect the owner with the user who has found the “lost” device. Other considerations To be discussed further wit...
I'm looking for a resourceful and proficient freelancer to build a cross-platform app (android and iOS) that will integrate with specific tables and queries from Microsoft Access. Role Expectations: - Creating UI that is intuitive and user-friendly. - Integration with MS Access, focusing on certain tables/queries. - Ensuring high performance of the app on both Android & iOS platforms. Ideal Skills: - At least 2 years' experience in cross-platform app development. - Proven experience of integrating apps with databases, extra points for Microsoft Access. - Good understanding of UI/UX principles. Note there’s no need for user registration as all the features would be public.
I have a step-by-step procedure, currently in PDF format extracted from Excel, that needs to be transcribed into a Word document and then formatted into a professional presentation. Detailed Requirements: - The content to be t...transcribed into a Word document and then formatted into a professional presentation. Detailed Requirements: - The content to be transcribed is text only. - The final formatted document should be in PDF format. - The presentation should be designed with a flexible layout, featuring one or multiple procedures per page, depending on the length of each procedure. Ideal Candidate: - Proficient in Microsoft Word and PDF formatting - Experienced in creating professional, clear, and concise presentations - Strong attention to detail - Capable of judicious layo...
...detailed quotation for creating XML documents and a DTD for your specified tables: XML Document Creation For each specified table, we will create a corresponding XML document. Tables: Exam: Fields include Exam_ID, Patient_ID, MD_ID, Room_ID, Start_Time, Finish_Time, Anesthesia. MD: Fields include MD_ID, Name, Pager_Number, Phone_Number, Specialty, Working_Address. DTD Creation We will develop a DTD for the Exam table, ensuring it matches the structure and relationships depicted in your data model. Milestones: Initial setup and creation of the XML document for the MD table. Creation of the XML document for the Exam table. Development and finalization of the DTD for the Exam document. Total Cost: 120 USD Delivery Timeline: We aim to deliver t...
For this project, we need an expert in data analysis who can help us make major strategic decisions by identify...expert in data analysis who can help us make major strategic decisions by identifying trends, patterns, and evaluating performance. We are yet to finalize the specifics of the data being analyzed, but you should be prepared to handle diverse data sets. Key Responsibilities: • Data interpretation and analysis • Report generation and presentation Required skills and experiences: • Proficient in Microsoft Excel and Python • Demonstrated experience in data analysis • Strong ability to identify patterns and trends • Excellent problem-solving skills Further information regarding the data to be analyzed and the purpose of the analysis wil...
...in need of a freelancer who is proficient in Microsoft Excel to create 3 comprehensive pro forma sheets and 4 sensitivity analysis sheets. The purpose of these sheets will be for financial forecasting, specifically in a year-by-year breakdown. Ideal Skills: - Advanced Microsoft Excel proficiency - Previous experience in financial forecasting - Attention to detail - Excellent analytical skills Please note, the project entails: - Creating 3 pro forma sheets - Developing 4 sensitivity analysis sheets - Ensuring a year-by-year breakdown for the financial forecasting - Providing a high level of accuracy and attention to detail - Adhering to deadlines with commitment If you have a solid background in financial analysis and are proficient in Microsoft Excel, plea...
I need an experienced web developer who can diagnose and fix a ...an experienced web developer who can diagnose and fix a sudden malfunction with a redirect feature on my website. Upon user login, the feature to open another website no longer functions. This problem started occurring a couple of months ago, and alarmingly, no updates or changes were made to the website just before the issue began. The browsers affected are Google Chrome, Microsoft Edge, and Brave (probably all browsers). Key Responsibilities: - Debug the problem - Fix the malfunction - Provide a clear explanation of what caused the issue and how you resolved it. Key Skills: - Proficiency in PHP, JavaScript and HTML - Advanced troubleshoot skills to resolve compatibility issues across multiple browsers.
I'm in need of a listener tracking app for my internet radio station. The app should be compatible with both iOS and Android. Additionally, it should have a corresponding website for users to access the data. Key Features: - Display total listeners since inception - Detailed per-podcast statistics - Time-based analytics - Listeners by geographic location I'm open to suggestions in terms of design. However, the most important aspect of this project is the functionality. The ideal candidate for this job should have experience in app development, particularly in creating tracking and analytic tools. It's also important that the developer has a good understanding of internet radio streaming and the nuances of listener statistics.
Hello everyone, I would like someone to repair all my XUIONE php files for me, there are 91 php files to repair, I'll give you an example here. Please only contact me if you can do this <?php echo ' '; if (count(get_included_files()) != 1) { $_PAGE = getPageName(); include ''; if ($rModal) { } else { echo ' <footer class="footer">' . "rn" . ' '; if ($rMobile) { } else { echo ' <a href="#" class="scrollToTop" id="scrollToBottom"><button type="button" class="btn btn-info waves-effect waves-light"><i class="fas fa-caret-down"></i></button></a>' ....
...(invoice date, invoice number, filename, filepath, sha512 fingerprint ) ...- the fetched data from the website to analyse is mapped into a page model class (page object model) ...- the finally fetched data of the invoices, which are locally on python side, are returned as a list of invoice class instances ...- expose operation via REST ...- can be outputted as xml or json (REST) - persist the downloaded data into database with ORM tool sqlalchemy + sqllite - use PyMS and sqlalchemy - use logging framework - cmd line only and rest api usage possible! Ideal Skillset: - Proficiency in Python - Experience with PyMS and sqlalchemy - Experiences with OOP (classes and lists) Milestones: MS0: goal is to have a "blank" microservices which is having the required
Hello. I'm looking to create a single-page informational starter site. I need a skilled professional to help design and develop the site using 10web, a platform that utilizes Wordpress AI Builder. Key requirements include: - A design that's both appealing and user-friendly. As I'm open to suggestions, I'm hoping you can build upon the current vision and guide me in creating a visually appealing site, leaning on your expertise and experience. - The primary goal of the site is to provide information and is meant to be a very basic starter site, so the design should be focused on ease of access and readability. - The site will be structured into two main sections: a business venture and a non-profit section. Ensuring that the design can clearly delineat...
I need a professional to create a Shopify ecommerce store. I am unsure of the exact product type yet, so it needs to support both physical and digital products. I’m also uncertain whether I want a custom design or use a pre-designed theme. Hence, you should be experienced with both. In your application, include your past work, experiences handling similar projects, and a detailed project proposal on how you'd approach this task.
I'm in need of a profes...characteristics. This could involve calculating measures of central tendency (mean, median, mode), measures of dispersion (range, variance, standard deviation), and visualizing the data using frequency distributions, scatter plots, histograms, box plots, etc. - **Visualization**: I'd like you to create charts and graphs based on the data analysis. The visualizations should be clear, easy to understand, and should effectively communicate the insights from the data. I prefer to work with someone who's proficient in Microsoft Excel for both the analysis and visualization. Your ability to transform raw data into clear, actionable insights will be crucial for this project. Experience with interpreting data and presenting it in a user-frie...
I'm seeking a skilled digital marketing expert to drive growth, enhance brand visibility, and fuel lead generation via targeted campaigns on Facebook, Instagram and SEO strategic implementation. Skills and Experience: - ...record in Social Media Marketing and SEO - In-depth understanding of Facebook and Instagram marketing strategies - Adept at creating engaging content that resonates with the target audience - Solid experience in driving website traffic and capturing leads Objectives: - Increase brand awareness - Boost website traffic - Generate quality leads Platform Focus: - Facebook - Instagram - Google - Microsoft Time to turn up the digital noise in favor of my brand. Your obvious expertise, creativity, and strategic thinking could just be the game-changer I need....
I'm in need of a talented professional who can assist in configuring my TP-Link devices. I have Omada devices, Jetstream switches and Access Points (APs) that require attention. Key Project Tasks: - Configuration of my TP-Link Omada devices, Jetstream switches and APs according to a plan I have. Skills and Experience Required: - Proficiency in working with TP-Link devices, specifically Omada devices, Jetstream switches and APs. - Expert in hardware configuration. - Strong troubleshooting skills to identify any potential issues during the configuration process. An ideal candidate would be one who is well-versed with TP-Link technologies and has previous experience in similar configuration projects. If you have the skills and experience, then I'd like to hear from ...
I'm looking for a skilled developer to create an escort directory website. It's essential that the website is user-friendly and appealing to both escorts and their potential clients. Key Features: - User Profiles: The website should allow for easy registration and profile creation for users. Each user should be able to manage their own account. - Search Filters: A comprehensive search functionality is needed so that users can find the escorts that meet their preferences. - Ratings and Reviews: Users should be able to rate and review escorts, providing transparency and helping other users make informed choices. Other Details: - The website is expected to have more than 1000 user profiles. Therefore, it should be designed and built with scalability in mind. - I'm un...
I need a Shopify developer to create a custom application for my store. I need this project completed as soon as possible. Ideal Skills and Experience: - Proficient in Shopify development - Experience in creating product customization features - Able to deliver projects on tight deadlines - Shopify experience
I'm looking for an experienced mobile app developer to create an application for iOS and Android platforms. The app should be able to identify and estimate the cost of a property using artificial intelligence to process photos. This project will require the following skills: - AI and machine learning - Image recognition - iOS and Android app development Key Features & Expectations: - Automatic Home Cost Estimation: The app should be able to analyze a user-submitted photo and provide an automatic estimate of the property's cost. - Photo Recognition using AI: This feature is crucial to accurately determining the cost of the property based on visuals alone. User Authentications: - The app should allow guest access, with no login required. If you have the nec...
I'm looking for an experienced mobile app developer to create an application for iOS and Android platforms. The app should be able to identify and estimate the cost of a property using artificial intelligence to process photos. This project will require the following skills: - AI and machine learning - Image recognition - iOS and Android app development Key Features & Expectations: - Automatic Home Cost Estimation: The app should be able to analyze a user-submitted photo and provide an automatic estimate of the property's cost. - Photo Recognition using AI: This feature is crucial to accurately determining the cost of the property based on visuals alone. User Authentications: - The app should allow guest access, with no login required. If you have the nec...
I am looking for a professional transcriber to accurately convert my accounting procedures notes from pdf files into a standard Word document. The original notes were written in Excel and then converted to pdf files. Ideal candidates must have: - Strong transcription skills with an excellent understanding of accounting terminology - Proficiency in Microsoft Word and Adobe Acrobat or other PDF-editing software - Attention to detail, ensuring that the procedures are correctly formatted and easy to understand As these notes are critical to my operations, confidentiality and timely delivery are absolutely essential. Prior experience transcribing financial or accounting documents will be a great advantage.
...distributed evenly across the three sectors with 150 leads each. The data must be current, verifiable, and neatly organized in CSV format for seamless integration into our CRM system. We prioritize accuracy and are looking for someone who can guarantee the correctness of the provided data. The chosen freelancer should have a proven track record in lead generation and scraping techniques, preferably with access to the necessary tools to streamline the process. It is essential that the freelancer is willing to work closely with our team, ensuring open communication throughout the duration of the project to address any questions or adjustments that may arise. Please include examples of similar work you have done in the past and any testimonials or references that could attest to t...
I need several adjustments made to my current logo. Primarily, I need a professional to: - Correct the colors of the logo - Adjust the font to make it more appealing - Modify some design elements for a more cohesive look Your work should result in a polished and refined logo that accurately represents my brand. Ideal skills and experience for this job include: - Graphic design expertise - Proficiency in logo design and editing - Understanding of color theory - Ability to choose and adjust fonts for a professional finish. Please bid if you're confident in your skills and can deliver quality work promptly.
I need an expert to properly assist me moving from Google Workspace to Microsoft 365. I have 19 users currently on Google Workspace and require help migrating our files. The project includes but is not limited to: - Planning and coordinating the file migration - Provision of a smooth transition with minimal disruption to business operations Given the nature of this project, an in-depth knowledge of Google Workspace and Microsoft 365 is vital. Previous experience in similar migrations would be a significant asset. Please bid with confidence if you believe you're a suitable fit for this project. Please note that no explicit mention was made of the specific file types that need to be migrated, so prepare for a comprehensive transfer all typical file types store...
Need a mern stack developer to create a dashboard with roles and views with options Frontend with React: Create CRUD user interfaces Design the UI for uploading and viewing documents in PDF format. Develop an administrative dashboard with search functionalities, filters and management access. Responsive Backend with Node.js and Express: Configure and manage API routes for all CRUD operations. Implementation of roles and permissions Database with MongoDB: Check DB to see if it is ok
As part of a customer feedback initiative, I'm seeking a proficient freelancer to help with formatting a survey document in Microsoft Word. Specific Requirements: - Incorporating various formatting options to make the document visually appealing and easy to navigate. - Integrating shapes for the survey questions. Skills and Experience: - Proficiency in Microsoft Word, particularly in utilizing its shapes features. - Prior experience in designing survey documents or similar types of forms would be highly beneficial. - Strong attention to detail to ensure the document is user-friendly and error-free.
I'm in need of a skilled web developer to create a custom web application that will allow me to Charge, Control or Monitor access to my Wi-Fi network. The primary goal of this web app is to streamline access management and billing for my network. Key Features: - Access Control: The web app should provide me with the ability to control and monitor user access to my Wi-Fi network. This includes features such as setting user permissions, monitoring network usage, and the ability to easily grant or revoke access privileges. - Billing System: The web app should have a built-in billing system that allows me to automatically charge users for accessing my network. The system should be flexible, allowing me to set different pricing tiers, payment met...
I'm currently seeking a freelancer with expertise in creating attractive and detailed eBay product listings. My listings primarily focus on furniture items. I will provide image files. Prices and dimensions can be found on our website. I will need you to create appropriate product titles and a short description. Also include price and dimensions details. The listings can be saved in drafts ready to be approved by myself before sending live on eBay. Please be familiar with eBay product listings. Well written English and grammar is important to me. I'm NOT looking for a software to automate with our website. I'm also NOT looking for an agency. I'm looking for an honest freelancer who is looking for continuous work. Please let me know the cost for 50...
I am experiencing strange and unauthorized content on my WordPress website. I have WordPress admin access and haven't implemented any security plugins or measures. I need an expert to examine and remove the malware from my site. Key requirements: - Diagnose the malware issue and provide a detailed report - Clean the site thoroughly and ensure no backdoors are left open - Provide recommendations to strengthen the site's security - Deliver a clean and fully functional website upon completion
I'm looking for a mobile application developer to create a task management app on Android Studio. This app will help users keep track of their tasks efficiently. Key Features: - User Registration: Users should be able to sign up and create an account within the app. - Task List: Users can create a list of tasks to manage. - Task Reminders: Users can set reminders for their tasks to help with their time management. - Task Categories: Users can categorize their tasks as work, personal, or school-related, for efficient organization. - Task Completion Tracking: Users should be able to mark tasks as completed. - Task Timer: tasks can be timed User Interface (UI)*: The user interface should be clean and straightforward, featuring: - A simple home screen displaying t...
I need another version of some symbols shown on site (see attached picture). The copies muss be different and drawn in color #2d388f. i need following symbols: Air condition MATTRESS car bike motorcycle rims fume hood kitchen front CERAMIK GLASS COOKTOP oven graut(tiles) WC shower cabin PVC floors Wooden Floors Tiles Iron plants blinds windows fittings garden furniture terraces whirlpool sauna swimming pool doors desinfection (spraybottle) freezer (ice) stains rugs couch lether watches chandlelights diffuser shoes drain sink animal cages dishwasher The symbols should be drawn as simple as possible ( on the avior swiss site they have done it very good but i can not copy it 100% - it can be similar) - I need it until thusday
I'm in urgent need of a skilled cybersecurity profe...network's needs will be essential. 2. Optimizing Network Security Settings: You will optimize the network security settings to provide a balance between accessibility and security of my network. 3. Setting Up VPN Access: Necessary to enable secure remote access to the network. 4. Setup of IDS with Snort: To detect any unusual patterns or suspicious activities within the network in real time. Ideal candidates should have a strong background in network security, proficiency in Pfsense, meticulous attention to detail, and previous experience setting up firewall rules, VPN access, and IDS with Snort, based on client-specific requirements. Sound knowledge of cybersecurity best practices is a must. ...
Hi Muhammad A., Hi Muhammad A., please can you integrate my WordPress forms contact details so that I receive the emails in my Microsoft 365 account and don't have to separately log into WordPress to see emails from my website
I'm looking for an experienced programmer who can develop a WhatsApp bot: Please go through each point and give brief explanation on how you will achieve this. 1) I have data in access db format. 2) I want a whatsapp bot which can access this database and reply to the message automatically after searching the database . While there's no mandatory requirement for a specific programming language or framework, an expert understanding of chatbot technologies and experience in creating instant messaging bots would be a great bonus. The successful candidate will need to interpret my project goals into a working bot, therefore excellent communication and understanding are key. To meet my urgent need for this function, I need the project completed as soon as possible. P...
...let me know if this is feasible to create: As soon as users access the website, they can log in with their ID and password to immediately see their saved content. Users can convert their notes into "PDF or JPG" format quickly, which will then be saved to their phone's photo library or their computer's download folder. When making notes, if users type "@" followed by a word, a corresponding image will automatically be inserted into the document. There will be multiple templates available for use. Users only need to enter their ID and password to register. Users' records will be encrypted with five layers of security to ensure that they are completely private. Biometric authentication (using fingerprints, facial recognition, etc.) will all...
...let me know if this is feasible to create: As soon as users access the website, they can log in with their ID and password to immediately see their saved content. Users can convert their notes into "PDF or JPG" format quickly, which will then be saved to their phone's photo library or their computer's download folder. When making notes, if users type "@" followed by a word, a corresponding image will automatically be inserted into the document. There will be multiple templates available for use. Users only need to enter their ID and password to register. Users' records will be encrypted with five layers of security to ensure that they are completely private. Biometric authentication (using fingerprints, facial recognition, etc.) will all...
In need of an expert designer skilled in creating compelling and educational PowerPoint presentation slides. Key Requirements: * Expertise in slide designing, particularly for educational content * Exceptional ability in using Microsoft PowerPoint * Ability to package information in a captivating manner suitable for an educational setting. The goal is to have a set of slides that are not just informative but also engaging, enhancing the learning experience. Please include samples of previous educational slide projects in your bid.
the project concerns the graphic and content customization of a wordpress site currently already loaded and for which all FTP and admin access will be provided. The site must have a few pages and a gallery with photos and descriptions that will be provided. the contact form via WhatsApp, all privacy and GDPR regulations will have to be implemented and an already purchased theme will have to be adapted which however is in html/tailwind format. you can also adapt better by using the same colors. The pages will be few: home, who we are, our projects and the product gallery. Videos may also be used
...deployment and configuration of network hardware and software components, including routers, switches, firewalls, load balancers, and wireless access points. Ensure proper integration and interoperability of network devices and services. Performance Optimization: Monitor network performance, traffic patterns, and utilization metrics to identify areas for optimization and improvement. Implement solutions to enhance network performance, reliability, and availability, including QoS policies, traffic shaping, and network segmentation. Security Implementation: Implement and maintain robust network security measures to protect against unauthorized access, data breaches, and cyber threats. Configure firewall policies, VPNs, intrusion detection/prevention systems, and other securi...
...Security and Compliance: Implement security best practices to safeguard backup data against unauthorized access, data breaches, and ransomware attacks. Ensure compliance with relevant regulatory requirements and industry standards. Qualifications: Bachelor’s degree in Computer Science, Information Technology, or a related field (or equivalent work experience). Extensive experience (X years) working with Veeam Backup and Replication solutions in enterprise environments. Proficiency in designing, implementing, and managing Veeam backup infrastructure, including repositories, proxies, and backup jobs. Strong understanding of virtualization technologies, particularly VMware vSphere and Microsoft Hyper-V. Excellent knowledge of backup and recovery concepts, including bac...
As the client for this project, I am seeking a competent app developer to create an Android app with certain key features. While there is a level of flexibility, applicants should bear in mind the following key requirements: Key Features Include: - User registration and login functionality - Push notification capabilities - In-app purchase options Given the nature of the project, the ideal freelancer would possess: Skills and Experience: - Robust experience in Android app development - Proficiency in creating user registration and login systems - Prior experience with push notifications and in-app purchases - Demonstrated ability to deliver high-quality app performance. Hosting: - The application will also need to be hosted. Although a preferred hosting platform has not been nam...
I need an Elementor expert to create 6 pages in wordpress with reference to our available Figma Designs and reference website uniswap.org. There are 2 pages available in figma HomePage and Blog page, check Pages from menus in Figma if you are new to Figma. Other 4 pages are Ecosystems, Community, Governance and Developers. These 4 pages should be developed following the Same theme and contents of the reference website can be used. Entire website should be developed following Wordpress standards using Elementor plugin. Need to be done by end of the day (6PM IST) of 30th April 2024 Please bid with your final price. No placeholders please be highly responsive to all screen sizes.
