#projection_left {
    float: left;
    width: 350px;
    height: 370px;
}

#projection_right {
    float: right;
    width: 546px;
    height: 370px;
}

input[type="checkbox"] {
    float: left;
    width: 30px;
    margin-top: 0px;
    margin-bottom: 16px;
    margin-left: 4px;
    margin-right: 3px;
    padding: 0;
}

.checkbox_label {
    float: right;
    text-align: left;
    width: 290px;
    margin-top: 0px;
    margin-bottom: 13px;
    padding: 0;
}

.projection_image {
    display: block;
    margin: 0 auto;
}

.first_para {
    margin-top: 0;
}

.hidden {
    display: none;
}