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