= Quoted String :url-yaml-strings: https://symfony.com/doc/current/components/yaml/yaml_format.html#strings Some keys accept a quoted string as text content. The final segment of these keys is always named `content`. A content key accepts a string value. It's usually best to quote the string or use the {url-yaml-strings}[YAML multi-line string syntax^]. Text content may be formatted using a subset of inline HTML. You can use the well-known elements such as ``, ``, ``, ``, ``, ``, ``, and ``. The `` element supports the `style` attribute, which you can use to specify the `color`, `font-weight`, and `font-style` CSS properties. You can also use the `rgb` attribute on the `` element to change the color or the `name` and `size` attributes on the `` element to change the font properties. If you need to add an underline or strikethrough decoration to the text, you can assign the `underline` or `line-through` to the `class` attribute on any aforementioned element. Here's an example of using formatting in the content of the menu caret: [,yaml] ---- menu-caret-content: " \u203a " ---- NOTE: The string must be double quoted in order to use a Unicode escape code like `\u203a`. Additionally, normal substitutions are applied to the value of content keys for xref:running-content.adoc[running content], so you can use most AsciiDoc inline formatting (e.g., `+*strong*+` or `+{attribute-name}+`) in the values of those keys.