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