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