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