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