body {
    font-family: 'Open Sans', sans-serif;
    background-color: #f7f7f7;
    color: #333;
    margin: 0;
    padding: 0;
    display: flex;
    flex-direction: column;
    min-height: 100vh;
}

body main{
    width: 100%;
    border: 0;
    flex: 1;
}