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