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