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