Element block pseudo-element :before generated with box-sizing content-box padding 0px transition border 2px rgba(0,150,255,0.91) solid overflow visible float none z-index auto line-height 1 border-radius font-weight normal background outline none height 100px cursor default display block position static box-shadow font-size 16px opacity 1 width 100px margin 0px transform text-shadow 1px 1px 2px rgba(0,0,0,0.5)