I have an existing website [url removed, login to view] that I built using only HTML5 and CSS3. It was built with an editor and not a GUI site-creator and I would provide the code files and except the edited ones back as a deliverable. It is important to me to have code written cleanly and clearly without the addition of frameworks, like for example, bootstrap. I have a STRONG PREFERENCE for only HTML5/CSS3, so that I may maintain it without a learning curve.
It is responsive currently down to landscape-tablet, but I need help dropping down to the next level; portrait tablet and mobile, which assume to be the same.
I have uploaded two .pdfs of a quick mockup I did. The Chinese Characters are text and I would like for that block to function as would a hamburger menu. Essentially, existing items are being reordered on the page, the existing nav bar disappears and new slide out nav replaces it on activation of the box with the characters.
Though I did the existing development myself, I am rusty and not getting to it, so I'd like to pay a pro to bang it out for me rather than struggle and wait. I have larger plans and could use more help in the future, but this is my immediate need. I'm happy to answer questions.