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