local-server/html/ui/app.css

.downloads {
    display: flex;
    align-content: stretch;
}

.downloads > * {
    margin-left: 6pt;
}
.downloads > *:first-child {
    margin-left: 0;
}

.downloads > div {
    display: flex;
    flex-flow: column;
    max-height: 100pt;
    overflow: auto;
}

.cluster {
    max-width: 50%;
}