Element button pseudo-element :before generated with height auto opacity 1 font-size 16px box-sizing border-box background float none outline none width auto transition transform position relative border 1px rgba(0,0,0,0.66) solid text-shadow -1px -1px 0px rgba(0,0,0,0.66) cursor pointer margin 0px display inline-block line-height normal font-weight normal z-index auto box-shadow 0px 0px 2px rgba(0,0,0,0.5) padding 20px overflow visible border-radius