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