body {
    background-color: lightgray;
    font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
    display: flex;
    justify-content: center;
    padding: 25px 150px;
}

#cy {
    box-sizing: border-box;
    background-color: #eeeeee;
    width: 100%;
    height: 650px;
    padding: 50px;
    margin: 10px;
    border-radius: 20px;
}

#graph {
    box-sizing: border-box;
    background-color: white;
    width: 70%;
    padding: 50px;
    margin: 10px;
    border: 1px solid black;
    border-radius: 5px;
}

#sidebar {
    margin: 10px;
    box-sizing: border-box;
    background-color: white;
    width: 30%;
    padding: 20px;
    border: 1px solid black;
    border-radius: 5px;
}

a {
    color: midnightblue;
    text-decoration: none;
}

a:hover {
    color: royalblue;
}

h1 {
    margin: 6px 0;
    font-size: 28px;
}

h2 {
    margin: 6px 0;
    font-size: 14px;
}

h3,
p,
a {
    margin: 6px;
    font-size: 12px;
}

li {
    margin: 3px;
    font-size: 12px;
}