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