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