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