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