* Use box-sizing:border-box when adding textarea padding - before
the right side of the textarea did not align with the right side of
the bell icon. Now it does.
* Fix specificity of rule hiding cancel link and "editing help" which
appear at the bottom of the form.
* Fix height of noJS textarea (70vh)
* Remove some unnecessary extra margins and padding (the minor edit
and watch this page checkboxes will now show on the same line)
* Update specificity for oo-ui-fieldLayout-body so that it does not
apply to the summary form.
Change-Id: I8d3d61fdc51934a6ef0885cde94dac1e8c5e33ca
f4658a4d0e