Element block pseudo-element :before generated with padding 20px height auto font-weight normal font-size 16px overflow hidden display block border 2px rgba(0,0,0,1) solid border-radius transform box-shadow 1px 1px 1px rgba(0,0,0,0.3) background text-shadow 1px 1px 1px rgba(0,0,0,0.2) cursor default float none position static z-index auto width 20px margin 0px transition box-sizing content-box line-height 1