* {
    text-align: center;
    font-family: Helvetica, Arial, sans-serif;
}

h2 {
    margin-bottom: 0;
}

h3 {
    margin-top: 5px;
}

#container {
    display: block;
    margin: auto;
}

#new-cases-key {
    height: 12px;
    width: 12px;
    background: #999;
    display: inline-block;
}

#average-key {
    height: 2px;
    width: 12px;
    background: red;
    display: inline-block;
    position: relative;
    top: -5px;
}

#key {
    margin-top: 0;
}

.modal {
    position: fixed;
    z-index: 1;
    left: 0;
    top: 0;
    width: 100%;
    height: 100%;
    overflow: auto;
    background-color: rgb(0,0,0);
    background-color: rgba(0,0,0,0.4);
    padding-top: 60px;
}

.modal-content {
    background-color: #fefefe;
    margin: 5% auto;
    padding: 20px;
    border: 1px solid #888;
    width: 50%;
}