Element block pseudo-class :active generated with z-index auto position static box-shadow 1px 1px 1px rgba(0,0,0,0.3) margin 0px transform border 0px rgba(0,0,0,1) solid width 160px float none padding 20px display block line-height 1 background font-weight normal transition overflow hidden height auto border-radius cursor default box-sizing content-box font-size 16px text-shadow 1px 1px 1px rgba(0,0,0,0.2)