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