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