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