Element block pseudo-class :active generated with box-sizing content-box text-shadow 1px 1px 1px rgba(0,0,0,0.2) margin 0px overflow hidden position static float none transform display inline-block height 50% font-size 16px width 50% transition cursor default box-shadow 1px 1px 1px rgba(0,0,0,0.3) font-weight normal z-index auto background padding 0px border 0px rgba(0,0,0,1) solid status border-radius line-height 1