Asset.css ViewHelper <f:asset.css>

ViewHelper to add CSS to the TYPO3 AssetCollector. Either a file or inline CSS can be added.

Examples

<f:asset.css identifier="identifier123" href="EXT:my_ext/Resources/Public/Css/foo.css" />
<f:asset.css identifier="identifier123">
   .foo { color: black; }
</f:asset.css>
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Details

In the AssetCollector, the "identifier" attribute is used as a unique identifier. Thus, if assets are added multiple times using the same identifier, the asset will only be served once (the last added overrides previous assets).

Some available attributes are defaults but do not make sense for this ViewHelper. Relevant attributes specific for this ViewHelper are: as, crossorigin, disabled, href, hreflang, importance, integrity, media, referrerpolicy, sizes, type, nonce.

Source code

Go to the source code of this ViewHelper: Asset\CssViewHelper.php (GitHub).

Arguments

The following arguments are available for the asset.css ViewHelper:

accesskey
Type
string
Keyboard shortcut to access this element
additionalAttributes
Type
array
Additional tag attributes. They will be added directly to the resulting HTML tag.
aria
Type
array
Additional aria-* attributes. They will each be added with a "aria-" prefix.
as
Type
string
Define the type of content being loaded (For rel="preload" or rel="prefetch" only).
class
Type
string
CSS class(es) for this element
crossorigin
Type
string
Define how to handle crossorigin requests.
data
Type
array
Additional data-* attributes. They will each be added with a "data-" prefix.
dir
Type
string
Text direction for this HTML element. Allowed strings: "ltr" (left to right), "rtl" (right to left)
disabled
Type
bool
Define whether or not the described stylesheet should be loaded and applied to the document.
href
Type
string
Define the URL of the resource (absolute or relative).
hreflang
Type
string
Define the language of the resource (Only to be used if 'href' is set).
id
Type
string
Unique (in this file) identifier for this HTML element.
identifier
Type
string
Required
1
Use this identifier within templates to only inject your CSS once, even though it is added multiple times.
importance
Type
string
Define the relative fetch priority of the resource.
integrity
Type
string
Define base64-encoded cryptographic hash of the resource that allows browsers to verify what they fetch.
lang
Type
string
Language for this element. Use short names specified in RFC 1766
media
Type
string
Define which media type the resources applies to.
nonce
Type
string
Define a cryptographic nonce (number used once) used to whitelist inline styles in a style-src Content-Security-Policy.
onclick
Type
string
JavaScript evaluated for the onclick event
priority
Type
boolean
Default
false
Define whether the CSS should be included before other CSS. CSS will always be output in the <head> tag.
referrerpolicy
Type
string
Define which referrer is sent when fetching the resource.
rel
Type
string
Define the relationship of the target object to the link object.
sizes
Type
string
Define the icon size of the resource.
style
Type
string
Individual CSS styles for this element
tabindex
Type
integer
Specifies the tab order of this element
title
Type
string
Tooltip text of element
type
Type
string
Define the MIME type (usually 'text/css').
useNonce
Type
bool
Default
false
Whether to use the global nonce value