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