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