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