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