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