Element button pseudo-element :before generated with display block background float none width auto box-sizing content-box height auto transition transform overflow hidden padding 20px border-radius position static border 0px rgba(0,0,0,1) solid font-size 52px opacity 1 z-index auto font-weight normal margin 0px line-height 1 box-shadow 4px 4px 6px rgba(0,0,0,0.4) text-shadow 1px 1px 2px rgba(0,0,0,0.5) cursor default outline none