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