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