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