.chunk {
    border-width: thin;
    border-style: solid none none solid;
    top: 100px;
    padding-bottom: 5px;
    padding-left: 5px;
    margin: 10px;
}

.header {
    border-width: thin;
    border-style: solid none none solid;
    padding-bottom: 5px;
    padding-left: 5px;
    margin: 10px;
}