shortcut that doesn't rely on .js

html5

// you need js if you want to reference:
header{
  color: 'pink';
}

// but without the need for js you can have:
<header id="header">
and do
#header{
  color: 'pink';
}

/* Looks ugly, but if you need to do a site with support for ie6 it's still better than div's */