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