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