body {
        background-image: url(lake.jpg);
        margin: 0;
        padding: 0;
        font-family: "Open Sans", "Helvetica Neue", Helvetica, Arial, sans-serif;
        background-size:100%;
        
    }
    div {
        width: 60%;
        margin: 5em auto;
        padding: 40px;
        background-color: #decee0;
        border-radius: 1em;
    }