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