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