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