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