Element block pseudo-element :before generated with font-size 16px z-index auto width auto transition box-sizing content-box position static opacity 1 padding 0px float none margin 0px background line-height 1 border 1px rgba(0,0,0,1) solid outline none overflow visible display block cursor default text-shadow font-weight normal border-radius height auto box-shadow 1px 1px 4px rgba(0,0,0,0.4) transform