.halfWidth {
    position: relative;
    width: 50%;
    float: left;
}

.bordered {
    border: 1px solid #ddd;
    margin-right: 30px;
    margin-bottom: 10px;
}

.parent {
    padding-left: 30px;
    padding-right: 30px;
}

.explain {
    padding-left: 30px;
    font-size: 20px;

}

#js {
    height: 400px;
    font-size: 14px;
}

#html {
    height: 180px;
    font-size: 14px;
}

#result {
    border: 0px;
    width: 100%;
    height: 100%;
}

.