Element block pseudo-element :after generated with overflow hidden box-sizing border-box transition text-shadow 1px 1px 1px rgba(0,0,0,0.2) border 0px rgba(0,0,0,1) solid box-shadow 1px 1px 1px rgba(0,0,0,0.3) width 160px height auto font-size 16px cursor default float left transform z-index auto margin auto font-weight normal background padding 20px display block position absolute border-radius line-height 1