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