Reply To: & symbol

[Senff]

It’s not pure CSS, is SCSS (used by Sass and LESS) that is compiled to actual CSS. It basically means “this”. Here’s some examples:

a {
   color:#ff0000;
   &:hover {
      color:#0000ff;
   }
}

Will be compiled into:

a {
   color:#ff0000;
}

a:hover {
   color:#0000ff;
}

Example 2:

li {
    border:solid 1px #0000ff;
    &.active {
        background:#00ff00;
    }
}

Compiles into:

li {
    border:solid 1px #0000ff;
}

li.active {
    background:#00ff00;
}

And so on.