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