This module enables HTML5 support for elements like the search form and adds (what we consider to be) some essential CSS – for example, to make all the images responsive when using the Oxygen visual site builder.
Details:
- Enables HTML5 support for comment list, comment form, search form, gallery and caption elements.
- Adds some CSS from Modern CSS Reset for
- setting a min-height of 100vh for the
bodyelement. - removing default padding, default margin and list styles on
ulandolelements that have a class set. - inheriting font rules for inputs and buttons.
- removing all animations and transitions for people that prefer not to see them via prefers-reduced-motion.
- setting a min-height of 100vh for the
- Adds CSS for
- adding a class called
dont-break-outfor forcing line breaks, hyphenation etc. - making all images responsive and setting their
vertical-aligntotopso they don’t take up an extra pixel space at the bottom. - WordPress image alignment classes. This is useful for wrapping text around images in Oxygen.
- making the admin bar sub menu items visible when using fixed header in Oxygen.
- making
labelelements visible. Oxygen, for some strange reason, seems to set their display to none. - handling screen reader text for form labels when HTML5 output is enabled (which this plugin does).
- aligning search form’s input and button side-by-side and changing header search form’s input width to
autofrom 100%.
- adding a class called

FAQ
1) How to unset max-width: 100% setting for img elements?
Add this in a Stylesheet at Manage > Stylesheets in the Oxygen editor:
img {
max-width: none;
}