$yellow: #fc0 =bordered :border :top :width 2px :color $yellow :left :width 1px :color #000 -moz-border-radius: 10px =header-font :color #f00 :font :size 20px =compound +header-font +bordered =complex +header-font text: decoration: none &:after content: "." display: block height: 0 clear: both visibility: hidden * html & height: 1px +header-font =deep a:hover :text-decoration underline +compound #main :width 15em :color #0000ff p +bordered :border :style dotted :width 2px .cool :width 100px #left +bordered :font :size 2em :weight bold :float left #right +bordered +header-font :float right .bordered +bordered .complex +complex .more-complex +complex +deep display: inline -webkit-nonsense: top-right: 1px bottom-left: 1px