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