div.ImportLayer {
    padding: 0 0.5em;
}

div.ImportLayer div.importlayer-input-fields {
    display: flex;
}

div.ImportLayer div.importlayer-input-fields > div {
    flex: 1 1 auto;
}

div.ImportLayer button.importlayer-addbutton {
    width: 100%;
    margin: 0.5em 0;
}

div.ImportLayer button.importlayer-addbutton > div.spinner {
    width: 1.5em;
    height: 1.5em;
    margin-right: 0.25em;
    display: inline-block;
    flex: 0 0 auto;
}

div.ImportLayer div.layer-catalog-widget {
    max-height: 13em;
}