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