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