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