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