html {
    width: 100%;
}

body {
    font-family: Arial, Helvetica, sans-serif;
    background-image: url(background.jpg);
}

h1 {
    margin: 15px auto;
    font-size: 45px;
    white-space: nowrap;
}

img {
    max-width: 100%;
    height: auto;
    border: 1px solid #2a2a2a;
    border-radius: 8px;
}

#main {
    min-width: 470px;
    margin: 30px auto;
    padding: 20px;
    width: 60%;
    background-color: #5bc0de;
    border-radius: 14px;
    border: 1px solid #e3e3e3;
}

.content {
    display: table;
    margin: 10px auto;
}