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Alert
<div class="asp-alert" role="region">
<div class="asp-container asp-alert__content">
<p>Last import - 9 September 2025 12:34</p>
</div>
</div>Nunjucks macro options
Use options to customise the appearance, content and behaviour of a component when using a macro, for example, changing the text.
Some options are required for the macro to work; these are marked as "Required" in the option description.
If you're using Nunjucks macros in production with "html" options, or ones ending with "html", you must sanitise the HTML to protect against cross-site scripting exploits.
| Name | Type | Description |
|---|---|---|
| modifier | string or false (boolean) | Default values are 'green', 'amber', 'red', 'grey' false (boolean) or null. 'blue', false (boolean) or null will have a blue background. |
| content | array | Required. The alert component content. See content. |
Options for content
| Name | Type | Description |
|---|---|---|
| html | string | Required. HTML for the alert component content. If 'html' is provided, the 'text' parameter will be ignored. |
| text | string | Required. Text for the alert component content. If 'html' is provided, the 'text' parameter will be ignored. |
{% from "components/alert/macro.njk" import aspAlert %}
{{ aspAlert({
content: {
text: "Last import - 9 September 2025 12:34"
}
}) }}
Twig macro options
Use options to customise the appearance, content and behaviour of a component when using a macro, for example, changing the text.
Some options are required for the macro to work; these are marked as "Required" in the option description.
If you're using Nunjucks macros in production with "html" options, or ones ending with "html", you must sanitise the HTML to protect against cross-site scripting exploits.
| Name | Type | Description |
|---|---|---|
| modifier | string or false (boolean) | Default values are 'green', 'amber', 'red', 'grey' false (boolean) or null. 'blue', false (boolean) or null will have a blue background. |
| content | array | Required. The alert component content. See content. |
Options for content
| Name | Type | Description |
|---|---|---|
| html | string | Required. HTML for the alert component content. If 'html' is provided, the 'text' parameter will be ignored. |
| text | string | Required. Text for the alert component content. If 'html' is provided, the 'text' parameter will be ignored. |
{% from "components/alert/macro.njk" import aspAlert %}
{{ aspAlert({
content: {
text: "Last import - 9 September 2025 12:34"
}
}) }}
<div class="asp-alert asp-alert--green" role="region">
<div class="asp-container asp-alert__content">
<p>Last import - 9 September 2025 12:34</p>
</div>
</div>Nunjucks macro options
Use options to customise the appearance, content and behaviour of a component when using a macro, for example, changing the text.
Some options are required for the macro to work; these are marked as "Required" in the option description.
If you're using Nunjucks macros in production with "html" options, or ones ending with "html", you must sanitise the HTML to protect against cross-site scripting exploits.
| Name | Type | Description |
|---|---|---|
| modifier | string or false (boolean) | Default values are 'green', 'amber', 'red', 'grey' false (boolean) or null. 'blue', false (boolean) or null will have a blue background. |
| content | array | Required. The alert component content. See content. |
Options for content
| Name | Type | Description |
|---|---|---|
| html | string | Required. HTML for the alert component content. If 'html' is provided, the 'text' parameter will be ignored. |
| text | string | Required. Text for the alert component content. If 'html' is provided, the 'text' parameter will be ignored. |
{% from "components/alert/macro.njk" import aspAlert %}
{{ aspAlert({
modifier: "green",
content: {
text: "Last import - 9 September 2025 12:34"
}
}) }}
Twig macro options
Use options to customise the appearance, content and behaviour of a component when using a macro, for example, changing the text.
Some options are required for the macro to work; these are marked as "Required" in the option description.
If you're using Nunjucks macros in production with "html" options, or ones ending with "html", you must sanitise the HTML to protect against cross-site scripting exploits.
| Name | Type | Description |
|---|---|---|
| modifier | string or false (boolean) | Default values are 'green', 'amber', 'red', 'grey' false (boolean) or null. 'blue', false (boolean) or null will have a blue background. |
| content | array | Required. The alert component content. See content. |
Options for content
| Name | Type | Description |
|---|---|---|
| html | string | Required. HTML for the alert component content. If 'html' is provided, the 'text' parameter will be ignored. |
| text | string | Required. Text for the alert component content. If 'html' is provided, the 'text' parameter will be ignored. |
{% from "components/alert/macro.njk" import aspAlert %}
{{ aspAlert({
modifier: "green",
content: {
text: "Last import - 9 September 2025 12:34"
}
}) }}
<div class="asp-alert asp-alert--amber" role="region">
<div class="asp-container asp-alert__content">
<p>Last import - 9 September 2025 12:34</p>
</div>
</div>Nunjucks macro options
Use options to customise the appearance, content and behaviour of a component when using a macro, for example, changing the text.
Some options are required for the macro to work; these are marked as "Required" in the option description.
If you're using Nunjucks macros in production with "html" options, or ones ending with "html", you must sanitise the HTML to protect against cross-site scripting exploits.
| Name | Type | Description |
|---|---|---|
| modifier | string or false (boolean) | Default values are 'green', 'amber', 'red', 'grey' false (boolean) or null. 'blue', false (boolean) or null will have a blue background. |
| content | array | Required. The alert component content. See content. |
Options for content
| Name | Type | Description |
|---|---|---|
| html | string | Required. HTML for the alert component content. If 'html' is provided, the 'text' parameter will be ignored. |
| text | string | Required. Text for the alert component content. If 'html' is provided, the 'text' parameter will be ignored. |
{% from "components/alert/macro.njk" import aspAlert %}
{{ aspAlert({
modifier: "amber",
content: {
text: "Last import - 9 September 2025 12:34"
}
}) }}
Twig macro options
Use options to customise the appearance, content and behaviour of a component when using a macro, for example, changing the text.
Some options are required for the macro to work; these are marked as "Required" in the option description.
If you're using Nunjucks macros in production with "html" options, or ones ending with "html", you must sanitise the HTML to protect against cross-site scripting exploits.
| Name | Type | Description |
|---|---|---|
| modifier | string or false (boolean) | Default values are 'green', 'amber', 'red', 'grey' false (boolean) or null. 'blue', false (boolean) or null will have a blue background. |
| content | array | Required. The alert component content. See content. |
Options for content
| Name | Type | Description |
|---|---|---|
| html | string | Required. HTML for the alert component content. If 'html' is provided, the 'text' parameter will be ignored. |
| text | string | Required. Text for the alert component content. If 'html' is provided, the 'text' parameter will be ignored. |
{% from "components/alert/macro.njk" import aspAlert %}
{{ aspAlert({
modifier: "amber",
content: {
text: "Last import - 9 September 2025 12:34"
}
}) }}
<div class="asp-alert asp-alert--red" role="region">
<div class="asp-container asp-alert__content">
<p><strong>Last import</strong>: 9 September 2025 12:34 - see <a href="#">advisory note</a></p>
</div>
</div>Nunjucks macro options
Use options to customise the appearance, content and behaviour of a component when using a macro, for example, changing the text.
Some options are required for the macro to work; these are marked as "Required" in the option description.
If you're using Nunjucks macros in production with "html" options, or ones ending with "html", you must sanitise the HTML to protect against cross-site scripting exploits.
| Name | Type | Description |
|---|---|---|
| modifier | string or false (boolean) | Default values are 'green', 'amber', 'red', 'grey' false (boolean) or null. 'blue', false (boolean) or null will have a blue background. |
| content | array | Required. The alert component content. See content. |
Options for content
| Name | Type | Description |
|---|---|---|
| html | string | Required. HTML for the alert component content. If 'html' is provided, the 'text' parameter will be ignored. |
| text | string | Required. Text for the alert component content. If 'html' is provided, the 'text' parameter will be ignored. |
{% from "components/alert/macro.njk" import aspAlert %}
{{ aspAlert({
modifier: "red",
content: {
html: "<p><strong>Last import</strong>: 9 September 2025 12:34 - see <a href=</span>"#">advisory note</a></p>"
}
}) }}
Twig macro options
Use options to customise the appearance, content and behaviour of a component when using a macro, for example, changing the text.
Some options are required for the macro to work; these are marked as "Required" in the option description.
If you're using Nunjucks macros in production with "html" options, or ones ending with "html", you must sanitise the HTML to protect against cross-site scripting exploits.
| Name | Type | Description |
|---|---|---|
| modifier | string or false (boolean) | Default values are 'green', 'amber', 'red', 'grey' false (boolean) or null. 'blue', false (boolean) or null will have a blue background. |
| content | array | Required. The alert component content. See content. |
Options for content
| Name | Type | Description |
|---|---|---|
| html | string | Required. HTML for the alert component content. If 'html' is provided, the 'text' parameter will be ignored. |
| text | string | Required. Text for the alert component content. If 'html' is provided, the 'text' parameter will be ignored. |
{% from "components/alert/macro.njk" import aspAlert %}
{{ aspAlert({
modifier: "red",
content: {
html: "<p><strong>Last import</strong>: 9 September 2025 12:34 - see <a href=</span>"#">advisory note</a></p>"
}
}) }}
<div class="asp-alert asp-alert--grey" role="region">
<div class="asp-container asp-alert__content">
<p><strong>Last import</strong>: 9 September 2025 12:34 - see <a href="#">advisory note</a></p>
</div>
</div>Nunjucks macro options
Use options to customise the appearance, content and behaviour of a component when using a macro, for example, changing the text.
Some options are required for the macro to work; these are marked as "Required" in the option description.
If you're using Nunjucks macros in production with "html" options, or ones ending with "html", you must sanitise the HTML to protect against cross-site scripting exploits.
| Name | Type | Description |
|---|---|---|
| modifier | string or false (boolean) | Default values are 'green', 'amber', 'red', 'grey' false (boolean) or null. 'blue', false (boolean) or null will have a blue background. |
| content | array | Required. The alert component content. See content. |
Options for content
| Name | Type | Description |
|---|---|---|
| html | string | Required. HTML for the alert component content. If 'html' is provided, the 'text' parameter will be ignored. |
| text | string | Required. Text for the alert component content. If 'html' is provided, the 'text' parameter will be ignored. |
{% from "components/alert/macro.njk" import aspAlert %}
{{ aspAlert({
modifier: "grey",
content: {
html: "<p><strong>Last import</strong>: 9 September 2025 12:34 - see <a href=</span>"#">advisory note</a></p>"
}
}) }}
Twig macro options
Use options to customise the appearance, content and behaviour of a component when using a macro, for example, changing the text.
Some options are required for the macro to work; these are marked as "Required" in the option description.
If you're using Nunjucks macros in production with "html" options, or ones ending with "html", you must sanitise the HTML to protect against cross-site scripting exploits.
| Name | Type | Description |
|---|---|---|
| modifier | string or false (boolean) | Default values are 'green', 'amber', 'red', 'grey' false (boolean) or null. 'blue', false (boolean) or null will have a blue background. |
| content | array | Required. The alert component content. See content. |
Options for content
| Name | Type | Description |
|---|---|---|
| html | string | Required. HTML for the alert component content. If 'html' is provided, the 'text' parameter will be ignored. |
| text | string | Required. Text for the alert component content. If 'html' is provided, the 'text' parameter will be ignored. |
{% from "components/alert/macro.njk" import aspAlert %}
{{ aspAlert({
modifier: "grey",
content: {
html: "<p><strong>Last import</strong>: 9 September 2025 12:34 - see <a href=</span>"#">advisory note</a></p>"
}
}) }}
<div class="asp-alert asp-alert--red" role="region">
<div class="asp-container">
<p><strong>Plane crash in Ahmedabad</strong>: The UK is working with local authorities in India to urgently establish the facts and provide support to those involved. <a href="#">What to do if you have concerns about friends or family</a>.</p>
</div>
</div>Status of development
The below criteria all need to be met for a component to be considered as fully developed for use within the ASP Digital Design System.
| Development criteria | Status |
|---|---|
| WCAG 2.2 compliant | Not started |
| WCAG 2.1 compliant | Failing |
| HTML / Nunjucks version | Completed |
| Figma version | Not started |
| M365 versions | Completed |
| Documentation | In progress |
Make a change to the Design System
Suggest an edit to this system, or any of the components in it, by submitting a Design System change request.
Published 3 May 2024
Last updated 24 October 2025