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