> ## Documentation Index
> Fetch the complete documentation index at: https://docs.extractbase.com/llms.txt
> Use this file to discover all available pages before exploring further.

# addStyleTag

Adds a `<style>` tag into the page with the desired content or URL.
Can be used to inject custom CSS to alter the page's appearance.
Example: `addStyleTag(options: { content: "body { background-color: blue; }" })`
Returns true if the style tag was successfully added.

## Definition

```graphql theme={null}
addStyleTag(
  options: AddStyleTagOptions!
): Boolean!
```

## Arguments

### `options`

[AddStyleTagOptions!](/reference/graphql/inputs/add-style-tag-options)

Options for the style tag, such as content or URL.

## Returns

[Boolean!](/reference/graphql/scalars/boolean)

The `Boolean` scalar type represents `true` or `false`.