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# CSS Changelog
## Version 4.0 (Summer 2017)
### Layout
- Columns are no longer hard-coded. They are either percent-width floats or flex columns. - MyResearch and sidebar menus no longer `.list-group`s.
- `.facet-group`s and `.facet`s
- Records are now `.media` items.
#### Forms
- All forms now have a unique class. - `.form-horizontal` classes have been largely removed. - Forms where labels are in a row with their inputs are not specified in CSS (`bootprint/forms.less`).
### Advanced Search
- No more hard-coded columns. - Revamped style for a cleaner, more uniform look that is easier to style.
### New classes
New | Old | Description |
—– | —– | ————- |
`.facet-group` and `.myresearch-menu` | `.list-group` | Sidebars |
`.facet` | `.list-group-item` | Sidebar items |
`.active-filters` | `.filters` | List for activated filters in search |
`.result-body` and `.result-links` | `.middle` and `.right` | Result item sections |
`.comment-name` and `.comment-text` | - | Contain the name and content of user comments |
`.record-nav` | - | Record bulk toolbar |
`.collection-hierarchytree` | - | RecordTab hierarchytrees |
`.page-prev` and `.page-next` | - | Pagination buttons |
`.modal-loading` | - | Lightbox loading spinner |
and various column containers