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