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