* {
    box-sizing: border-box;
}

body {
    font-family: 'Nunito', sans-serif;
    max-width: 733px;
    margin-top: 0;
    margin-bottom: 0;
    margin-left: auto;
    margin-right: auto;
    background-color: rgb(236, 236, 236);
}

/* Style the top navigation bar */
.topnav {
    overflow: hidden;
    background-color: #0a1a2b;
}

/* Style the topnav links */
.topnav a {
    float: left;
    display: block;
    color: #f2f2f2;
    text-align: center;
    padding: 14px 16px;
    text-decoration: none;
}

/* Change color on hover */
.topnav a:hover {
    background-color: rgb(236, 236, 236);
    color: black;
}

/* Style the content */
.content {
    background-color: rgb(236, 236, 236);
    padding: 10px;
}

/* Style the footer */
.footer {
    background-color: #0a1a2b;
    font-size: 100%;
    padding: 10px;
    text-align: center;
}

/* Style the footer links */
.footer a {
    color: #f2f2f2;
    text-align: center;
    padding: 14px 16px;
    text-decoration: none;
}

/* Style the image */
img {
    border-radius: 50%;
    padding: 3px;
    width: 200px;
    display: block;
    margin-left: 10px;
    margin-right: auto;
}