main{margin:0!important;padding:0!important}main section .not-found-404{text-align:center;-webkit-box-orient:vertical;-webkit-box-direction:normal;-ms-flex-direction:column;flex-direction:column;justify-content:center;align-items:center;height:100vh;display:-webkit-box;display:-ms-flexbox;display:flex}main section .not-found-404 img{width:450px}main section .not-found-404 h3{margin:20px 0}main section .not-found-404 .btn-default{padding:18px 50px;font-size:18px}