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