.left-thumbnail, .right-thumbnail {
    width: 30%;
}

.left-thumbnail {
    float: left;
    margin-right: 1em;
}

.right-thumbnail {
    float: right;
    margin-left: 1em;
}

.list-group-item:before, .list-group-item:after {
    content: '';
    display: table;
    clear: both;
}

h1, .h1 {
    font-size: 24px;
}

h2, .h2 {
    font-size: 20px;
}

h3, .h3 {
    font-size: 18px;
}

h4, .h4 {
    font-size: 16px;
}

h1, .h1, h2, .h2, h3, .h3 {
    margin-top: 10px;
    margin-bottom: 10px;
}

.panel-heading {
    padding: 5px 15px;
}