body {
            margin: 0px;
        }
        .header,.footer {
            font-size: 30px;
            font-family: sans-serif;
            height: 100px;
            display:flex;
            align-items:center;
            justify-content: center;
        }
        .header {
            background: linear-gradient(135deg, rgba(254,255,255,1) 0%,rgba(149,164,173,1) 100%);
        }
        .footer {
            background: linear-gradient(135deg, rgba(149,164,173,1) 0%,rgba(254,255,255,1) 100%); 
        }