.region-sidebar .block-facetapi .facetapi-facetapi-checkbox-links li {
    list-style-image: none;
    list-style-type: none;
    margin: 0 0 0.25em 0;
}

.region-sidebar .block-facetapi .facetapi-facetapi-checkbox-links li a {
    margin-left: 0.5em;
}