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