Convertir una plantilla de una web

I'm building my new website using wordpress. I'm combining a simple responsive theme and a plugin that creates an isotope grid with every featured image in my posts. So far I had no problems with designing and coding myself (I know a bit of css, html and php) but now I'm jammed with some details I cannot solve and that's why I'm asking for your collaboration. URL: [login to view URL] Enter trough [login to view URL] to skip maintenance mode. user: freelance pass: freelance These are the tasks that need to be done in both theme and plugin: GENERAL ADJUSTMENTS - Font-color is not rendering equally in sidebar (menu) and grid (compare Firefox with Safari and Chrome browsers) so we would need to solve this issue (image 1) - Images in the grid have different rendering quality in Firefox, Safari and Chrome. We would need to equalize the to the highest quality in every browser (image 2) THEME CUSTOMIZING - Activate fancybox in posts, allowing user to activate a full screen fancybox slideshow when clicking on a image. - Create a "back to top" and "back to index" link in the bottom of each post. PLUGIN CUSTOMIZING - In the portfolio grid, once a category filter is activated (ex. portrait), I'd like to go back to "all" categories (default) by clicking on any faded image. - In the responsiveness settings I'd like to convert Tablet (landscape) media query to 3 columns.