body {
    font-family: Arial, sans-serif;
    margin: 20px;
    background-color: #f4f4f4;
}

h1 {
    text-align: center;
}

#menu {
    border: 3px solid navy;
    padding: 15px;
    margin-bottom: 20px;
    background-color: white;
}

/* Required anchor states */

#menu a:link {
    color: blue;
}

#menu a:visited {
    color: purple;
}

#menu a:hover {
    color: red;
}

#menu a:active {
    color: orange;
}

#menu a:focus {
    color: green;
}

#menu a {
    text-decoration: none;
    font-weight: bold;
    margin-right: 15px;
}

.article {
    background-color: white;
    border: 2px solid gray;
    padding: 20px;
}

.article img {
    float: right;
    width: 300px;
    margin-left: 15px;
    margin-bottom: 10px;
}

.source {
    font-style: italic;
}

.continue-reading {
    color: blue;
    text-decoration: none;
    font-weight: bold;
    font-size: 18px;
}

.continue-reading:hover {
    color: red;
    text-decoration: underline;
}