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