$main-color: #1E7B12; @mixin rounded-corners($radius) { border-radius: $radius; -moz-border-radius: $radius; -webkit-border-radius: $radius; } body { margin: 0; padding: 0; background-color: #FFF; font-family: verdana; font-size: 14px; } #header { background-color: $main-color; color: #FFF; padding: 4px 100px; border-bottom: solid 5px darken($main-color, 10%); h1 { font-size: 30px; } } a { color: