body {
    margin: 0;
    text-align: center;
    /*background-color: #1f2730;*/
    background: #000000;
    background: linear-gradient(90deg,rgba(0, 0, 0, 1) 0%, rgba(115, 121, 133, 1) 30%, rgba(77, 81, 84, 1) 71%);  
    color: white;
}