Element block pseudo-element :before generated with box-sizing content-box margin 21px overflow hidden box-shadow 1px 1px 1px rgba(0,0,0,0.3) transform cursor default text-shadow 1px 1px 1px rgba(0,0,0,0.2) border 0px rgba(0,0,0,1) solid height auto border-radius z-index auto line-height 1 background padding 21px font-weight normal display block float none position static font-size 16px width 160px transition