Greetings
I can surely help you for modificación CSS
I am in the IT industry since more than a decade and serve so many clients for building and rebuilding websites, software and applications and I have strong hands-on different programming languages like PHP, CSS 3, Laravel, C++, C- Sharp, HTML, JAVA, .NET, Joomla, Click funnel, Angular, React, Node.js, Django etc., And I did migration from HTML to click funnels.
I have made so many websites (E-commerce, WordPress, Classified admin, WooCommerce etc.), bots, softwares, Mobile application (Android, IOS and Huawei Play store) in my entire career. I have strong hands on both front end and backend. Currently I am part of the team who are dealing miscellaneous task in dubizzle and Mzad Qatar including design and layouts and they both have more than 1 million users.
I believe that you are looking for a web designer and for sure you will get your end desire result with plagiarism free work and with better quality as I am assuring you this. Package deal can also be done for long term collaboration as per the client requirement.
Kindly do come on chat for so that we can discuss project details further more.