.error404_number{color:#f8f8f833;display:flex;font-size:515px;height:618px;margin-bottom:180px;margin-top:140px;width:818px}.error404_subtitle{color:#fff;font-size:40px;line-height:96px}@media (min-width:640px){.error404_subtitle{font-size:80px}}.btn-404{display:flex;margin-left:auto;margin-right:auto;margin-top:560px;position:absolute}