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