Class Names and Identifiers for On-Screen Keyboard and Other KeymanWeb Elements

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The appearance of the KeymanWeb on-screen keyboard, menu amd other elements can be customized by a web designer by redefining (or adding to) the default styles. Styles and named elements all have the class name (or id) prefix kmw- joined to the object and item names, for example kmw-key-text, to set the basic style for the keycap text on each on-screen keyboard key. Multiple classes are applied to many objects, with top-level classes of tablet, phone and desktop used to set different element styles according to the device type. Unique elements, such as the menu and pop-up key frame, are named rather than referred to by class.

Most visual attributes such as text size and colour, background colour, shading, margins, etc. can be varied according to preference but developers should avoid changing positional attributes.

Class names applied to on-screen keyboard elements:

Class name	Keyboard element
kmw-osk-frame	Outer keyboard frame
kmw-osk-inner-frame	Inner keyboard frame
kmw-key-layer-group	Keyboard layers container element
kmw-key-layer	Keyboard layer element
kmw-key-row	Keyboard row container element
kmw-key-square	Keyboard key container element
kmw-key-square-ex	Pop-up key container element
kmw-key	Key element
kmw-key-label	Key label (desktop OSK and phonetic layouts)
kmw-key-text	Keycap text
kmw-key-popup-icon	Text or graphic to indicate that a keyboard key has associated popup keys
kmw-spacebar-caption	Style applied to caption on spacebar

Class names applied to different types of keys:

Class name	Key style
kmw-key-default	Default
kmw-key-shift	Shift key, layer-switching keys
kmw-key-shift-on	Active shift key
kmw-key-deadkey	Dead key
kmw-key-blank	Blank, unmapped key
kmw-key-hidden	Hidden spacer key
kmw-key-touched	Active (touched) key

Element identifiers for keys:

Useful reference: Keys, Virtual Keys, and Virtual Character Keys

Each key element (kmw-key) has an ID based on the key code used for it within Keyman Developer. Each ID is based on two or three pieces:

• The key's layer
• The key's code
• If it differs from the key's actual layer, the "modifier" setting for the key as set within the Touch Layout editor.

The format:

• <display layer>-<key code>
• <display layer>-<key code>+<modifier layer> (if different from <display layer>)

Some example IDs:

• default-K_K - the K_K key on the default layer
• currency-U_20B2 - the U_20B2 key (₲) on the currency layer
• numeric-K_0+default - the K_0 key displayed on the numeric layer, using the same modifiers as the default layer.

For keys reached by longpress, the form of the ID is the same, just with one extra piece: it is prepended with popup-.

• popup-default-U_1E0F - the U_1E0F subkey (ḏ) on the default layer
  • This is one of the subkeys of the 'd' key on the default layer on the EuroLatin (SIL) keyboard.

You can set styles for specific keys by using CSS selectors against specific key IDs.

The following selector will find the key element for all keys with the key code K_RBRKT of the keyboard's phone layout.

.phone div.kmw-key.kmw-key-default[id*='K_RBRKT']

Note the [id*='K_RBRKT'] part. There can be a few variations here:

• *= - "contains"
• ^= - "starts with"
• $= - "ends with"

So, to match all keys reached by longpress, you could use:

div.kmw-key.kmw-key-default[id^='popup-']

Also, :not(...) can be used to invert a selector. The following selector will match all base keys, but not any longpress keys.

div.kmw-key.kmw-key-default:not([id^='popup-'])

Element identifiers and class names for desktop on-screen keyboard elements:

Class name or id	Desktop OSK element
kmw-title-bar	OSK title bar
kmw-title-bar-caption	OSK title bar caption (keyboard name)
kmw-title-bar-actions	Container for image elements in OSK title bar
kmw-title-bar-image	Active image element (button) in OSK title bar
kmw-footer	Desktop OSK footer element
kmw-footer-caption	Caption in desktop OSK footer
kmw-footer-resize	Style for the footer's resizing icon
kmw-osk-static	Container style for non-sizable keyboards
kmw-osk-none	Empty keyboard container style
#kmw-pin-image	Style of icon to return OSK to default position
#kmw-config-image	Style of icon to open configuration options window
#kmw-help-image	Style of icon to open keymanweb help window
#kmw-close-button	Style of close button image

Element identifiers and class names applied to pop-up key container elements:

Class name	Element
#kmw-popup-keys	Pop-up key container
arrow-border	Style setting callout arrow border
arrow-content	Style setting callout arrow background

Element identifiers and class names applied to language menu elements:

Class name	Menu element
#kmw-language-menu	Language menu container element
#kmw-language-menu-background	Hidden background layer preventing unwanted action while selecting a language or keyboard
#kmw-menu-scroll-container	Container for language list scroller
#kmw-menu-scroller	Langauge list scroller
#kmw-menu-index	Container for language index
#kmw-menu-footer	Placeholder at bottom of scroller
kbd-list	Style for language-list element
kmw-list-open	Style for list element when expanded
kmw-list-closed	Style for list element when not expanded
kmw-list-entry	Language entry in language list
kmw-single-entry	Single keyboard entry in language list
current	Active keyboard entry in language list
selected	Touched entry in language list

Message box class names:

Class name	Element
kmw-wait-box	Message box
kmw-wait-background	Message box background
kmw-wait-text	Message box wait text
kmw-wait-graphic	Message box wait icon
kmw-alert-text	Message box alert text
kmw-alert-close	Message box close icon

The default styles for KeymanWeb can be found online at https://github.com/keymanapp/keyman/blob/master/web/src/resources/osk/kmwosk.css.

For the styles for specific released versions, they can also be found through s.keyman.com, such as https://s.keyman-staging.com/kmw/engine/17.0.326/osk/kmwosk.css for version 17.0.326.