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