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