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