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