.article-format {
    /* Content column that makes room for a sidebar */
    max-width: 55rem;
    text-align: left;
    float: left;
}

aside {
    /* Wraps the entire sidebar section */
    width: 17rem;
    font-size: 0.95rem;
    margin-bottom: 1.5rem;
    display: inline-block;
    float: right;
}

aside.fixed {
    position: fixed;
    z-index: 0;
    margin-top: 7rem;
    margin-left: 3rem;
    margin-right: 0;
    overflow-y: scroll;
    max-height: 70%;
    box-shadow: 1px 1px 5px 1px rgba(20, 20, 20, 0.15);
}

aside::-webkit-scrollbar {
    background-color: #DDDDDD;
    width: 10px;
}

aside::-webkit-scrollbar-thumb {
    background-color: #BBBBBB;
}

.sidebar-component {
    /* Wraps the window */
    margin-top: 1.5rem;
    background-color: #FFFFFF;
}

aside > div:first-of-type {
    /* Remove margin-top from first .sidebar-component */
    margin-top: 0;
}

aside a, aside a:visited {
    color: #444444;
}

aside .bluelink, aside .bluelink:visited {
    color: #287DB4;
    font-weight: bold;
}

aside a:hover, aside .bluelink:hover {
    color: #1E5E7B;
}

.sidebar-head {
    color: #FFFFFF;
    background-color: #3399CC;
}

.sidebar-head h3 {
    padding: 0.5rem 1rem;
}

aside h3, aside h4 {
    font-size: 1rem;
    padding-top: 0;
}

aside h4 {
    color: #222222;
}

.sidebar-box {
    border: 1px solid #CCCCCC;
    border-top: 0;
    padding: 1rem;
}

.sidebar-box.geppetto-hint {
    border: 1px solid #CCCCCC;
    padding: 1rem;
    text-align: center;
}

.sidebar-box ul {
    padding: 0;
    margin-left: 0;
}

.sidebar-box ul li, .sidebar-box p {
    list-style-type: none;
    padding: 0.3rem 0;
    line-height: 1.4rem;
}

.sidebar-mailing-list {
    background: #CBE1EB;
    text-align: center;
    border: 1px solid #3399CC;
    padding: 2rem 1rem;
}

/* Sidebar page responsiveness */

@media only screen and (max-width: 73rem) {
    aside {
        display: none;
    }
}

@media only screen and (max-width: 60rem) {
    .article-format {
        float: none;
    }
}