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