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