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