Metro UI CSS makes use of certain HTML elements and CSS properties that require the use of the HTML5 doctype. Include it at the beginning of all your projects.
<!DOCTYPE html> <html lang="en"> ... </html>
In Metro UI CSS used normalize.css by Nicolas Gallaher
To set background color use prefix bg, for set text color use prefix fg
<div class="bg-color-red">...</div> <span class="fg-color-blue">...</span>
To set border color use prefix border
<div class="border-color-red">...</div>
To set outline color for components (such as tile, listView item, etc.) use prefix outline
<div class="tile outline-color-red">...</div>
In Metro UI CSS i use Segoe UI, Open Sans fonts (depending on the availability in the system).