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