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