* {
        box-sizing: border-box;
        margin: 0%;
    }

    .column {
        float: left;
        font-family: sans-serif;
      }

    .row:after {
        content: "";
        display: table;
        clear: both;
    }

    .menu {
        text-decoration: none;
        color: black;
        margin-right: 30px;
      }

    .button {
        padding: 15px 30px;
        color: white;
        text-decoration: none;
        background-color: black; 
        border-radius: 30px;
      }
