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