body {
    vertical-align: top;
    min-height: 1500px;
}

.document {
    white-space: pre;
    line-height: 1.5em;
    font-family: mono;
    font-size: 0.95em;
    position: relative;
    border: 3px solid red;
    display: inline-block;
    padding: 10px;
    margin-left: 5px;
    vertical-align: top;
}
    .chunk-in-structure {
        border: 3px solid gray;
    }
    .chunk-in-map {
        border: 3px solid green;
    }
    .highlight {
        background-color: green;
    }
.document.generated {
    border-color: blue;
}
    .document.generated .chunk-in-map {
        border-color: blue;
    }
    .document.generated .highlight {
        background-color: blue;
    }