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