Merges all of the styles in the Zebra module into the default styles.
- skins.vector.zebra.styles ResourceLoader module is removed.
- FIXME's related to Zebra styles are removed.
- Top-level "&" that were used for scoping to feature-flag are removed.
- `$wgVectorZebraDesign` feature flag is removed.
Bug: T347712
Change-Id: I0177541ae87a5d070d5317629ca38de93613d620
preparing html and css to avoid caching issues
caused by differences between zebra and non-zebra HTML.
Bug: T347712
Bug: T351830
Change-Id: I6f8ae635ba38937729b77ea8517ef2eae0ae12f7
Adds bigger bottom margin (1em) while keeping
the smaller top margin (0.5em) as was previously define.
This keeps the headings close to the paragraphs
while seperating paragraphs from each other.
Bug: T351754
Change-Id: I833372002654ea30deb110af44fb412722bc0ccd
Adds different font-sizes and line-heights for the custom
font-size UI. The custom font-size preference options are now:
1. Compact - 14px font-size & 22px line-height
2. Standard - 16px font-size & 24px line-height
3. Open - 20px font-size & 26px line-height
This removes the "xl" font-size option
(`vector-feature-custom-font-size-3`) and it's related i18n messages,
and changes the remaining message to match the new options.
The default font-size, when the custom font-size feature is disabled,
is "compact".
Bug: T351693
Change-Id: I5975a78ce7327f314fd55de55c222ac08d801fbd
- Add appearance.svg file and classes
- Update the icon name in php
- Update icon name in test data and Snapshot
To test: change return value of
isClientPreferencesPinned() from SkinVector22
PHP Class to false
Bug: T351142
Change-Id: If61f3019430be3cb9c926b09bc397e27d8e636f2
Add CSS to support new HTML markup for headings with section edit
links, which will soon be used by Parsoid page views (T269630)
and by the old parser (T13555). Keep the old rules to provide
temporary support for cached page HTML and emergency opt-outs,
as well as permanent support for plain headings on special pages
and in Parsoid edit mode HTML.
See documentation page for further explanation:
https://www.mediawiki.org/wiki/Heading_HTML_changes
Depends-On: I44587461582d648b56ef0c9c7ae0c322895c69c2
Bug: T13555
Bug: T269630
Change-Id: I62d7e8ad7d8f25d145ec1f33230d6043982aec1e
* This moves down the client pref menu
* For now when page tools is collapsed the client preference menu
is hidden. This will be revisited when we implement pinning
in the next sprint.
Bug: T350417
Change-Id: Ic94d6fd2c4ccb667b0ae602d03c564f88a14b8ec
Known problems:
- For now, this can only be rendered by manually updating
the isClientPreferencesPinned local variable in SkinVector22
This will be addressed in T351141
- The icon is not correct. This will be addressed in
https://phabricator.wikimedia.org/T351142
Bug: T350195
Change-Id: I0b1ec445c4d292bbf417a39dbc5d2032b563f525
- The Less variable @font-size-base--trident-hack is removed
- All instances of font-size: @font-size-base--trident-hack; usage is removed from Vector 2022
Bug: T349010
Change-Id: Ie131b8f0dbb4d8050d33df969c1c49963ddc95e2
Replacing the legacy Vector breakpoint tokens with the Codex
standard ones. All names have been unified, only some legacy values
remain for backwards compatibility.
Also
- replacing a wrongly applied min-width with the correct max-width
token,
- replacing a width with an equal value min-width one and
- removing the now equal value mobile min-width one.
Note that we can't do some reference magic here alike
`@max-width-breakpoint-mobile: @min-width-breakpoint-tablet - 1px;` as
this would take the Codex value from skin variables and not the legacy
value.
Also note, that we could move all those Vector legacy definitions into
Vector's 'mediawiki.skin.variables.less' file(s), but that would mean
that extensions don't rely on the Codex default values, but on Vector's
and we want latter to move to the standard, also in foresight of
further standardization to build for all feature teams like a
shared Grid.
Bug: T331403
Change-Id: Ifb968b1977001edb1a79e20df387c61f27043542
Replaces font-sizes that are between 12-14
px with ones that equal 14px. This involved
converting some values to rems as well as changing
their size.
@font-size-tabs (a computed 13px value) is removed
in favour of unit( @font-size-small, rem).
This removal requires the following changes:
* Removing max-height & box-sizing from tabs, since
they used @font-size-tabs for size calculations
* modifying .mixin-vector-arrowed-dropdown-toggle()
to use `unit( 12 / @font-size-browser, rem )` instead
of `unit( 16 / @font-size-tabs / @font-size-browser, em )`
* Changes to the position of `.vector-toc-toggle` since
it's width/height depended on
.mixin-vector-arrowed-dropdown-toggle()
Opportunistic refactor:
- `.mixin-vector-legacy-menu-heading-arrow()`
is removed from Zebra
Expected visual changes:
font-sizes below refer to computed values, actual values
are now set in rems.
* Text in tabs is 14px not 13px
* #siteSub is 14px not 12.8px
* #contentSub is 14px not 11.76px
* #contentSub line height is default, not 1.2
* dropdown [hide] labels are 14px instead of 13px
*************************
*****VISUAL CHANGE*****
*************************
: 91 changes in Pixel due to content being pushed
down due to bigger font-size in toolbar.
Bug: T346062
Bug: T261334
Change-Id: I6cfc800bb8dfed206670e5365bdc55e5d7357a4a
Introduces CSS custom properties for the purposes
of enabling client-side customizable font sizes.
CSS custom properties are contained in a Less file,
which imports values from Codex and converted them to rems
using the Less unit() function.
Includes ADR on CSS custom properties decisions.
Bug: T348984
Change-Id: Ic5e62d55f3c3585fe3a00e41f29f88d3a2f7470b
Removing all references to WikimediaUI Base and replacing them with
the Codex equivalents.
Also removing variables redefinitions that are not needed anymore.
Only value difference is a last family added before general fallback
called 'Source Serif Pro', which basically will never be visible due to
the general availability of Georgia and Times.
Also removing general font stack comments, see Codex design tokens
comments for these context explanations.
Bug: T334934
Change-Id: I61aa44e40830ffdb308aaea4ca30af0f25ba2274
Notes:
* This is functional but intentionally not designed until the design
has been finalized.
* A feature flag is added that swaps out the limited width toggle with
a settings cog
* The preferences module is kept in a separate ResourceLoader module
(skins.vector.clientPreferences) to make it more portable for
when we eventually want to add it to Minerva as well.
* Intentionally have not focused on non-jS version given we will
likely revise this again in a future version/upstream to core.
Bug: T345363
Change-Id: I0c793b73e0676e32f031c6168c292f63908c72e3
- Status should persist across page views for anonymous users
- Added 'toc-pinned' as a persistable feature in features.js and FeatureManager.php.
- Handling for cached HTML supporting both new and old class names for pinned/unpinned TOC
Based-On: I0fbe0ab458c5bd55d659d3c35a8fbaa6cd6ec0e1
Bug: T316060
Change-Id: Iad8523037ed364f09962b2d6ca0a3d50d7bd2266
Functionality in I37d8e61a1287b31d1a304d2a955f532b9b8fa505
was working until Ic83eaa34ffa74a42c7cf6df7c0857dd7a9401aba
Bug: T342845
Change-Id: Ie7f18e2228420b3269b0be969474e605d48ba682
* Update classes to use clientpref-1 and clientpref-0 suffix for limited width
I've limited this to the only client preference for now to reduce
risk.
* For cached HTML retain existing CSS rules, and continue saving
a cookie
* Migrate cookie if found for newly generated pages. This will be
to ensure the old cookie and new cookie are in sync (this should be
a one time operation)
Depends-On: I1e635f843ac9b2f248b1f7618134598e80291b38
Bug: T341641
Change-Id: I120f8f7114b33d2cfbd1c3c57ebf41f8b2d7fec4
This reverts commit cb4265f003.
Reason for revert: This makes the situation worse when language
is not mixed.
Bug: T343110
Change-Id: I40158b15bad1ac06256894fc7ec6ffbac1e45fb0
- VectorComponentMenuVariants.php is renamed to VectorComponentVariants.php, and returns menu and dropdown data
- Remove TabsMenuContents.mustache in favor of MenuContents.mustache
- Fix the variants dropdown to use the full Menu template
Follow-up: Idf05c1664c026f58487ba34af5ede8a11e695baf
Change-Id: I0e9b1ab3306b04ee0d226048c6885beab4f310c6
New menu items can be added via
```
var node = mw.util.addPortletLink('p-dock-bottom', '#', 'hello' )
if (node) {
node.querySelector('a').classList.add( 'mw-ui-icon', 'mw-ui-icon-element', 'mw-ui-button' )
}
```
Bug: T336431
Change-Id: I8c5c5414cda9d268631ba0fade90e1a44c104ff1
The language dropdown currently impacts rendering due to making use of
visibility: hidden as space must be allocated for it on the page.
However when ULS is installed it is never used. As some JS to take
that into account so it doesn't impact the rendering of the page.
Since ULS may not be installed we have to consider that case and
retain the existing behaviour for those wiki (this should only
impact 3rd parties)
Bug: T340715
Change-Id: Ic83eaa34ffa74a42c7cf6df7c0857dd7a9401aba
* Factor out mixin for right aligning menus
VISUAL CHANGE:
Results in a slight change to the alignment of the user menu.
Bug: T339321
Change-Id: I5c3a03161b1f2372d2ca25ba47dcd40065f4f2cc
The languages alert is misleading when there are no languages and the user has JS disabled.
This change adds a class to the alert if there are 0 languages, and then adds "display: none" to the alert if the client-nojs class is present. This is the same approach being used for the language switcher button.
Bug: T326185
Change-Id: Iee292d661ed1f47700f588053712f5f547022b17
- Update SearchBox.mustache markup to use codex styles
- Scope old SearchBox markup to LegacySearchBox.mustache
- Add handling for thumbnail and autoexpand search variants
- Adds a 'Search' button to SearchBox.mustache matching the initial non vue search box with the Codex design
- Refactor SearchBox CSS so styles are scoped better
Visual changes:
A "Search" button now appears on page load when it previously only appeared after loading in Vue
Bug: T337966
Change-Id: Ibcffe00292ab4f9f5f9919982d578793cf8594de
Changes:
- mw-ui-button to cdx-button
- mw-ui-quiet to cdx-button--weight-quiet
- mw-ui-icon-element to cdx-button--icon-only
- mw-ui-icon to vector-icon
- mw-ui-icon-flush-right/left to vector-button-flush-right/left
- Removes $isSmallIcon param in Hooks.php
85 Visual Changes
- ~36 changes from minor pixel changes from the new button classes in the main menu, language button
- 22 from standardizing the padding of the TOC in page title
- ~10 changes from addition of .cdx-button to the TOC toggle buttons
PERFORMANCE:
This will result in an overall increase of 2.7kb of render blocking
CSS, 1kb will be reclaimed when
I6c1ed1523df8cc9e2f2ca09506f12a595b8b013d is merged.
Co-author: Bernard Wang <bwang@wikimedia.org>
Bug: T336526
Change-Id: Ibd558238a41a0d3edb981e441638f9564f43d226
This allows the styles to be applied on browsers without JS support, notably the rule that hides the button.
Bug: T337580
Change-Id: I604d0c6362e2c424c38cbf5b798a5ac619bd70cf
This reverts commit 4ef136e7e6.
Reason for revert: This is made obsolete by
Iec3fc67c498d230ae7c0dc0ba4316006ccd9626a when wmf/1.41.0-wmf.8
has been cut.
Change-Id: I1d6c737b6a2d9fa2d123d29a1e0ab740a854c9e5
Applying central Codex design tokens in new architecture.
This should already show the working principle of the new architecture.
Replacing `@z-index-menu` by `z-index-dropdown`.
Note this is also removing obsolete `@z-index-sidebar-button`.
Bug: T285592
Change-Id: I9ab1137241c9e1e7baffff9e07400bc2fc07d943
This reverts commit b6603a591f.
Reason for revert: Causes the login and create account to be flushed
together (will add screenshot on ticket)
Change-Id: Ib25f21e85eb9984dfa9fcf50a50198c5d2ba7bed
Removes the permanent scrollbars from Vector 2022
as well at the 100% height on `.mw-page-container`.
The permanent scrollbars ( overflow-y:scroll) are
an artifact of legacy Vector and no longer serve
a (known) purpose.
The 100% height on `.mw-page-container` was originally
added to fix T257518, however that fix is no longer
necessary with the use of CSS Grid for layout.
Bug: T335883
Change-Id: I57bb0274a9d51269bb58ae7904c0517742716ec8
These items are vertically centered via flexbox already,
so this isnt needed. Results in expected visual changes.
Results in expected visual changes.
Bug: T334881
Change-Id: I05409ec591f9ade179e93262b855bba6bd0e4a12
Refactors the bottom border in the zebra update
so that it doesn't require flexwrap on the
`.vector-page-titlebar` element, which can cause the
PagTitlebar layout to break when the page title is
longer than one line.
The challenge with the underline in Zebra is that we
want to use padding to create the white background on the
content elements, but we *don't* want the underline
to stretch to edge of the box (which is what bottom-border
or box-shadow would produce), instead we want the
underline to only span the width of the content.
Bug: T335633
Change-Id: Ib942ff4e7674397cd7f0e1004a9e402169fbd206
Moves the CSS rule that hides the #siteSub element by
default into /resources/common/typography.less in
order to prevent it from being feature flagged
(and thereby overriding the specificity of on-wiki edits)
during the Zebra update.
Bug: T335625
Change-Id: If41fadc6a369ab371f6c1e75e9cf3022a01574a0
Makes the columns that contain the ToC and Page Tools
menu equal width.
Moves these width declarations into the grid.less file
and converts them, as well as a few associated width
variables, to rems.
Widens the content column to maintain the same
line-length as pre-zebra, due to the extra side-padding
on the content container.
Scopes the non-zebra grid.less less file to the
zebra-disabled flag.
Bug: T335155
Change-Id: Iab9c5a13c90089c1775e6184eb10b7b4fd31a846
Removing 'mediawiki.ui/variables.less' `@import`, which is now
fully replaced by skin-aware 'mediawiki.skin.variables.less'
standard.
Bumping required MediaWiki core version to >= v1.41.0.
Also
- replacing deprecated keys with new Codex token equivalent keys
Bug: T319381
Bug: T332541
Change-Id: I87bd258a24d8ca8b789f8355fe6495eca4cebb85
In 3cea6d41, files were split between the zebra/non-zabra modules
and scoped to the top-level zebra-enabled/disabled class.
Since some selectors already target the html element, ampersands
were added to these selectors to append the zebra-enabled/disabled
class to them.
This rule PageTools.less was overlooked.
Change-Id: I5057a409da31ba6c4b2310048f8690154ca43e16
Implements the zebra design update via the
skins.vector.zebra.styles module.
Refactors:
- Moves common variable and mixin imports from
individual files to skin.less file.
- Applies font-sizes to menu containers instead
of individual menu links.
- Adds mixins for dropdown and content-box styles.
- Unifies padding for pinned and unpinned menu states
(including TOC).
Bug: T332600
Change-Id: I3d49095d84fa205cb5dcc889574133f42f1fd4ea
This change scopes the styles related to the Zebra
update by wrapping the imports in a top-level feature
flag selector,
i.e
.vector-feature-zebra-design-enabled {
@import "./screen.less"
}
To account for this extra selector, ampersands are
added wherever the html element is targeted in the
affected files. This applies to both zebra enabled
and disabled files.
getDefaultModules() is used in SkinVector22.php to
conditionally load the new skins.vector.zebra.styles
module when the feature is enabled.
Bug: T332600
Change-Id: I5e673df383ff31f296010f982e4188c82f095590
This refactor seeks to make it easier to separate
feature flagged styles by wrapping the imports in
a top-level feature-flag selector, e.g:
.vector-feature-zebra-design-disabled {
@import './layouts/preZebra.less';
}
This change does the following:
- Moves all file @imports to skin.less
- Removes unnecessary @import from MainMenu.less
- Moves .mixin-page-container() to mixins.less
- Moves @min-width-supported variable to variables.less
- Scopes existing Zebra styles at the skin.less file @import level
- Removes selectors ending with ampersands
The last changes makes it easer to reason about changes
specifically when wrapping entire file imports in a selector
since the ampersand ends up inheriting its value
from the skin.less file.
No visual differences are expected with this change.
Bug: T332600
Change-Id: Ife05e28ff38f9c5077e2d9eac653df656566e443
Removes checkbox.js and related styles as well
as rules for #mw-sidebar-checkbox which was removed
in a previous patch.
Bug: T332090
Change-Id: I168c1161a1d3365e79c2ff6b1c2ab5455f7c4c00
Removes several styles that were used for
expanding/collapsing the table of contents at narrow
widths for non-js users as well as the main menu
for no-js users.
Existing `.vector-menu-checkbox` styles address this
use-case with the addition of a display:none rule for the
two affected checkboxes.
Related to the Page Tools clean-up since these styles
were once scoped to the .vector-page-tools-disabled
class.
Bug: T332090
Change-Id: I13efd4a87bacecb0e9f5a5e44d5e15861d632c62
This removes CSS selectors associated with the Page tools
feature flag, i.e. `vector-feature-page-tools-disabled` as
well as `vector-feature-page-tools-enabled` by removing
the 'disabled' styles and integrating the 'enabled' styles
into the default page tools code.
Bug: T332090
Change-Id: I382e12ca7ce741a3071582ffa84da03c2ba9e343
- Move the header and skip link out of .mw-page-container-inner and the grid
- Wrap the header and sticky header with a .vector-header-container element, allowing us to easily update header styles in the future
- Update sticky header to use a <div> to fix a11y error. Update searchToggle.js to use .vector-header-container rather than <header>
Bug: T332449
Bug: T330438
Change-Id: I038fc17cbb88a29dbe8d7841b824761a91d38405
[Visual change]
Height of the article toolbar is reduced, this is done by reducing the
padding on the top of the tabs and reducing the margin on the
top of the Watchstar and Wikilove icons.
Bug: T316950
Change-Id: Ic2a3146eab901c834712d23f80277e313c42d907
* Ensure 8px spacing between all icons and buttons
* Move buttons to separate container, so they aren't
grouped with -icons.
* Reducing horizontal padding of quiet labelled buttons
to 5px to match spec.
Bug: T326571
Change-Id: I71c3aee82152f048c347f80747972d526039a8f0
This patch removes the old style rules for .vector-toc-pinned after one
week of cache.
Also removes 'data-name' which was no longer used
Bug: T325032
Change-Id: I7c8d8e51a61646151706b71a1733b1daac5dbd45
There's a lot of .mw-body-content out there that shouldn't have this
margin applied. Switch it to #mw-content-text so that it's only applied
to the actual article content.
Bug: T331458
Change-Id: Ia040f85ed484db21129c3673808bc2ad71962ec3
This introduces a general scroll-padding-top value of 50px
for Vector 2022's HTML element.
This changes makes it so that when navigating sections via the
TOC, the section headings are 50px lower on the screen.
This change has been synced with the ToC active sections as well,
so that active sections become active at the same offset.
Bug: T314419
Change-Id: I99e5fe2047f5ad1e61ef51b6ba7e76a6cac36fc5
Follow up to I3484a790ce8ebadf21054ac1d222d5632b2dc5a4
__Template__
The template is not particularly useful - it is only ever
used once in this context and features a static ID which means
it can never be reused. It is also tied to the #vector-toc-collapsed-checkbox
element. In current form it doesn't make sense to have this template.
Maybe in future, I could see an argument for a PinnableTableOfContents component
that wrapped the checkbox and nav element, and generalized the IDs but
currently there's no pressing need or value for that.
__Layouts__
The existing Pinned and Unpinned stylesheets are concerned with how the table
of contents is layed out holistically with regards to other components and
features enabled on the page. I think these should therefore be organized as such.
The way I reason with this, is these styles would be irrelevant in a component
library if the component was rendered in isolation.
Bug: T328719
Change-Id: I9ff0e0eeb35f215a8cae5950d08dc1277b662a71
- We had to add nav element to wrap TOC in all places
- Make sure proper nav is only displayed so landmark do not get confused
- Remove Eslint block on rules compat/compat for no support IE 11, this was blocking commit
- Run lint:fix:js and lint:fix:styles
- Fix maxSize in bundlesize.config.json
Bug: T324505
Change-Id: I36d26240b87de33318ff1edf97a410872a438103
- Fixes TOC button being transparent (https://jmp.sh/jbuivqlM). FYI the fixed width toggle button has the same issue.
- Add replace `html-vector-heading-icon` with Icon.mustache
Bug: T320453
Depends-on: I9a990ea8de63fb336391bea11b4503d447fb9d4f
Change-Id: I39397f8e98f79a2fdde9a8d785690133ea5a2619
This reverts commit 8d0659b1e6.
The logic for temporary users is now centralized inside
MediaWiki core, so Vector has no need to check whether a user
is temporary and instead work with the data it's given.
Depends-On: I36815aaef81ec7368e240a780e90bd574785df74
Bug: T328725
Change-Id: Ie30dd6a77ef391f74a435e0b9df74793ffdf73bb
- Removes 'mw-ui-quiet' class from the TOC button when below the page title, meaning the TOC is just using default button styles. However, these styles are still not to spec due to button/icon tech debt (https://jmp.sh/jbuivqlM). The styles are fixed in the following patch
- DRY up TOC CSS
- Fix no-js collapsed TOC styles
Results in 4 expected visual changes. Note, the button styles are still incorrect and will be fixed in the next patch
https://jmp.sh/nHujNdVK
Bug: T315932
Bug: T320453
Depends-on: I490eb6244a35f18149844a87297c5f1ccc5b7df9
Change-Id: Id11805029b78847734d15041d31c2538412cf20a
To improve user experience when using gadgets and extensions that
cause layout shifts after page load, we want the anchor node selection
algorithm to only pick nodes in the content column or spanning full
width of the page.
Bug: T330108
Change-Id: Id996f766a535a487fb6bafe6a06a98d1a60ac8e3
Per T318169#8601576, the space between the top of the TOC and Page tools to the
top of the viewport or bottom of the sticky header should be 30px.
* Revises the page tools columnEnd grid to begin at the top of the titlebar to
enable 30px of top padding on the page tools
* Consolidates some styles in TableOfContentsPinned.less
VISUAL CHANGE: table of contents moves down page.
Bug: T318169
Bug: T319315
Change-Id: If8d8f87942d6265461b1a1a8ccf1c447d6e8b0d6
Rather than try to build individually build login, logout, and create account menu items, we handle them the same as all other user links menu items in Hooks.php. While Hooks isnt ideal, there currently isnt a good path for moving that code to SkinComponents until core provides menu data. In the meantime, this patch reduces code complexity and prevents bugs like T324638.
This approach also allows us to move user links logic from SkinVector22 to VectorComponentUserLinks.php, and ensures the user links dropdown contains multiple menus, which allows us to reuse styles from page tools dropdowns.
Expected 11 visual changes:
* minor visual change where the user links dropdown has an
additional 4px vertical padding.
This padding was originally added to the page tools dropdowns
per Alex's request, but Alex also said that dropdowns should share
the same spacing. This change makes the styles all consistent
* Order of talk and contribution links have been swapped
Bug: T289212
Bug: T319356
Bug: T328954
Change-Id: Iac0586893fec26a8a6c2c904ce08fbf1e19b339c
Follow-up to 886437, which suggested moving the bottom padding of the scroll
indicator's parent to the `mixin-vector-scroll-indicator-mixin`. This makes
sense because if the correct amount of bottom padding isn't applied, the scroll
indicator could overlap the text when scrolled all the way to the bottom.
Bug: T318169
Change-Id: I94f98ae75f9b80484114a2413caf2cb0c237e8ba
* Adds sticky behavior to pinned page tools
* Moves scroll indicator styles into a mixin shared by TOC and page tools
* Replaces the 10px magic number in the TOC used to calculate the bottom padding with the
@padding-vertical-dropdown-menu variable.
* Increases the pinned TOC max-height per T319315
* Corrects spacing between bottom of sticky header and top of TOC after discussion with designer
* Causes 43 visual changes in Pixel that include intentional changes and subpixel
rendering changes associated with the `contain: paint` rule.
Bug: T318169
Bug: T319315
Change-Id: Ica0c4e0de1825d37d8136b589a9bf5decc96855e
Use CSS to decide whether to show the button or not. This retains the
existing logic for hiding the button on any page where the action is not
view.
Bug: T327795
Change-Id: If74246418f87c871c01cb7b2b62f6c59263bf976
The TypeaheadSearch component in Codex switched from using content-box
to border-box for the dimensions of its menu items, reducing their
height by 2px (because of the top and bottom border). Update the
height calculation for the loading indicator accordingly.
Bug: T322383
Change-Id: I5367e402fa8ac9891358bb2f7ba87584b2835a9a
Only do this when JS is enabled and the Vue search (Codex
TypeaheadSearch) is going to be loaded. Without this, when viewing
Vector with an increased browser font size, Codex's icon scales up but
ours doesn't, causing the icon to grow and jump when Codex loads.
Set the icon's size in relative units (em instead of px), and change the
background position so it stays in the same place.
Change-Id: Ie0b33797f9da75dc758a8afbe58eb004d90f3776
