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