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