main {
    margin: 10px;
    padding: 10px;
    box-sizing: border-box;
    font-family: Arial, Helvetica, sans-serif;
    font-weight: bold;
    font-size: 11px;
    color: #3b3b3b;
    min-height: calc(100vh - 62px - 50px);
}

main{
    background-color: #ecf7fc;
    padding: 20px 20px 60px 20px;
}


footer{
    background-color: gray;
    position: fixed;
    bottom: 0;
    left: 0;
    right: 0;
    height: 50px;
    text-align: center;
    line-height: 50px;
}