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