Element block pseudo-element :after generated with height auto transition z-index auto box-sizing content-box text-shadow 1px 1px 1px rgba(0,0,0,0.2) background float none font-weight normal display block padding 20px outline none box-shadow 1px 3px 1px rgba(0,0,0,0.3) font-size 16px border 0px rgba(0,0,0,1) solid position static width 160px line-height 1 border-radius overflow hidden cursor default margin 0px opacity 1 transform