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