Element block pseudo-element :before generated with transition overflow hidden background width 151px margin 0px float left display block position static box-sizing content-box outline none padding 10px opacity 1 cursor default line-height normal border-radius font-size 12px border 1px rgba(0,0,0,1) solid font-weight normal z-index auto box-shadow 1px 1px 1px rgba(90,90,90,0.7) height auto text-shadow 1px 1px 1px rgba(0,0,0,0.3) transform