` – **Defines the document title**. Not allowed in FHIR. * ✅ `<body>` – **Document body container**. Allowed inside `<div>`. # **2. Headings** * ✅ `<h1>` to `<h6>` – **Section headings** (largest `<h1>` to smallest `<h6>`). # **3. Text Formatting & Semantic Elements** * ✅ `<p>` – **Paragraph**. * ⚠️ `<blockquote>` – **Block quotation for citing sources**. * ⚠️ `<q>` – **Short inline quotation**. * ⚠️ `<cite>` – **Citations for works (e.g., book titles, reports)**. * ⚠️ `<code>` – **Displays code snippets**. * ✅ `<em>` – **Emphasized (italic) text**. * ✅ `<strong>` – **Important (bold) text**. * ⚠️ `<dfn>` – **Definition term**. * ⚠️ `<abbr>` – **Abbreviation (e.g., "WHO" for World Health Organization)**. * ⚠️ `<acronym>` – **Acronym (like `<abbr>`).** * ⚠️ `<address>` – **Contact information** * ⚠️ `<pre>` – **Preformatted text (preserves spaces and line breaks)**. * ⚠️ `<ins>` – **Inserted text (e.g., corrections in legal documents)**. * ⚠️ `<del>` – **Deleted text (e.g., strike-through for removed content)**. * ⚠️ `<kbd>` – **Keyboard input (e.g., "Press `Ctrl+C`")**. * ⚠️ `<samp>` – **Sample output from a program**. * ⚠️ `<var>` – **Variable in programming/math expressions**. * ✅ `<sup>` – **Superscript (e.g., "m²")**. * ✅ `<sub>` – **Subscript (e.g., "H₂O")**. * ❌ `<bdo>` – **Overrides text direction (bidirectional text)**. Not allowed. # **4. Lists** * ✅ `<ul>` – **Unordered list** (bulleted). * ✅ `<ol>` – **Ordered list** (numbered). * ✅ `<li>` – **List item** (inside `<ul>` or `<ol>`). * ⚠️ `<dl>` – **Definition list** (used for term/description pairs). * ⚠️ `<dt>` – **Definition term** (inside `<dl>`). * ⚠️ `<dd>` – **Definition description** (inside `<dl>`). # **5. Links** * ✅ `<a>` – **Hyperlink to another page, document, or anchor**. # **6. Tables** * ✅ `<table>` – **Defines a table**. * ✅ `<caption>` – **Table caption/title**. * ✅ `<thead>` – **Table header section**. * ✅ `<tbody>` – **Table body section**. * ✅ `<tfoot>` – **Table footer section**. * ✅ `<tr>` – **Table row**. * ✅ `<th>` – **Table header cell**. * ✅ `<td>` – **Table data cell**. * ✅ `<col>` – **Defines a column in a table**. * ✅ `<colgroup>` – **Groups multiple columns in a table**. # **7. Forms and Inputs** * ❌ `<form>` – **Defines an input form**. Not allowed. * ❌ `<fieldset>` – **Groups form elements**. Not allowed. * ❌ `<legend>` – **Caption for `<fieldset>`**. Not allowed. * ❌ `<label>` – **Label for form inputs**. Not allowed. * ❌ `<input />` – **Form input field**. Not allowed. * ❌ `<textarea>` – **Multiline text input**. Not allowed. * ❌ `<select>` – **Dropdown list**. Not allowed. * ❌ `<option>` – **Option in `<select>`**. Not allowed. * ❌ `<optgroup>` – **Groups options in `<select>`**. Not allowed. * ❌ `<button>` – **Clickable button**. Not allowed. # **8. Images and Objects** * ✅ `<img />` – **Displays an image (allowed only if using an embedded FHIR Binary Resource)**. * ❌ `<object>` – **Embeds external objects (e.g., multimedia, PDFs)**. Not allowed. * ❌ `<param />` – **Parameters for `<object>`**. Not allowed. * ❌ `<map>` – **Defines an image map (clickable areas)**. Not allowed. * ❌ `<area />` – **Clickable area in an image map**. Not allowed. # **9. Scripting and Styles** * ❌ `<script>` – **JavaScript code**. Not allowed. * ❌ `<noscript>` – **Alternative content for no-script browsers**. Not allowed. * ❌ `<style>` – **Inline CSS styling**. Not allowed. # **10. Miscellaneous** * ❌ `<hr />` – **Horizontal line divider**. Not allowed. * ⚠️ `<br />` – **Line break**. * ⚠️ `<span>` – **Generic inline container** (useful for applying styles). * ⚠️ `<div>` – **Generic block container (root element in FHIR narratives).**

Readme md file | **Title** | **Technical Documentation: Allowed, Not Allowed and Not Used as Selectors (EMA) XHTML Tags** | |--|--| | **Version** | 0.2 | | **Status** | DRAFT | ### Update History |Version| Author | Comment | Date | |--|--|--|--| | 0.1 | Gautam Sharma | Init | 2025-02-13 | | 0.2 | Gautam Sharma | Update based on EMA feedback| 2025-02-19 | [[_TOC_]] Considering FHIR narratives with embedded images (XTHML 1.0 Strict and FHIR restrictions) and EMA requirements. # **Legend** * ✅ **Allowed in FHIR XHTML narratives** * ❌ **Not allowed in FHIR XHTML narratives** * ⚠️ **Allowed but not used as an element selector by EMA** # **1. Document Structure** * ❌ `` – **Defines the entire HTML document**. Not allowed in FHIR. * ❌ `` – **Contains metadata and links**. Not allowed in FHIR. * ❌ `` – **Defines the document title**. Not allowed in FHIR. * ✅ `<body>` – **Document body container**. Allowed inside `<div>`. # **2. Headings** * ✅ `<h1>` to `<h6>` – **Section headings** (largest `<h1>` to smallest `<h6>`). # **3. Text Formatting & Semantic Elements** * ✅ `<p>` – **Paragraph**. * ⚠️ `<blockquote>` – **Block quotation for citing sources**. * ⚠️ `<q>` – **Short inline quotation**. * ⚠️ `<cite>` – **Citations for works (e.g., book titles, reports)**. * ⚠️ `<code>` – **Displays code snippets**. * ✅ `<em>` – **Emphasized (italic) text**. * ✅ `<strong>` – **Important (bold) text**. * ⚠️ `<dfn>` – **Definition term**. * ⚠️ `<abbr>` – **Abbreviation (e.g., "WHO" for World Health Organization)**. * ⚠️ `<acronym>` – **Acronym (like `<abbr>`).** * ⚠️ `<address>` – **Contact information** * ⚠️ `<pre>` – **Preformatted text (preserves spaces and line breaks)**. * ⚠️ `<ins>` – **Inserted text (e.g., corrections in legal documents)**. * ⚠️ `<del>` – **Deleted text (e.g., strike-through for removed content)**. * ⚠️ `<kbd>` – **Keyboard input (e.g., "Press `Ctrl+C`")**. * ⚠️ `<samp>` – **Sample output from a program**. * ⚠️ `<var>` – **Variable in programming/math expressions**. * ✅ `<sup>` – **Superscript (e.g., "m²")**. * ✅ `<sub>` – **Subscript (e.g., "H₂O")**. * ❌ `<bdo>` – **Overrides text direction (bidirectional text)**. Not allowed. # **4. Lists** * ✅ `<ul>` – **Unordered list** (bulleted). * ✅ `<ol>` – **Ordered list** (numbered). * ✅ `<li>` – **List item** (inside `<ul>` or `<ol>`). * ⚠️ `<dl>` – **Definition list** (used for term/description pairs). * ⚠️ `<dt>` – **Definition term** (inside `<dl>`). * ⚠️ `<dd>` – **Definition description** (inside `<dl>`). # **5. Links** * ✅ `<a>` – **Hyperlink to another page, document, or anchor**. # **6. Tables** * ✅ `<table>` – **Defines a table**. * ✅ `<caption>` – **Table caption/title**. * ✅ `<thead>` – **Table header section**. * ✅ `<tbody>` – **Table body section**. * ✅ `<tfoot>` – **Table footer section**. * ✅ `<tr>` – **Table row**. * ✅ `<th>` – **Table header cell**. * ✅ `<td>` – **Table data cell**. * ✅ `<col>` – **Defines a column in a table**. * ✅ `<colgroup>` – **Groups multiple columns in a table**. # **7. Forms and Inputs** * ❌ `<form>` – **Defines an input form**. Not allowed. * ❌ `<fieldset>` – **Groups form elements**. Not allowed. * ❌ `<legend>` – **Caption for `<fieldset>`**. Not allowed. * ❌ `<label>` – **Label for form inputs**. Not allowed. * ❌ `<input />` – **Form input field**. Not allowed. * ❌ `<textarea>` – **Multiline text input**. Not allowed. * ❌ `<select>` – **Dropdown list**. Not allowed. * ❌ `<option>` – **Option in `<select>`**. Not allowed. * ❌ `<optgroup>` – **Groups options in `<select>`**. Not allowed. * ❌ `<button>` – **Clickable button**. Not allowed. # **8. Images and Objects** * ✅ `<img />` – **Displays an image (allowed only if using an embedded FHIR Binary Resource)**. * ❌ `<object>` – **Embeds external objects (e.g., multimedia, PDFs)**. Not allowed. * ❌ `<param />` – **Parameters for `<object>`**. Not allowed. * ❌ `<map>` – **Defines an image map (clickable areas)**. Not allowed. * ❌ `<area />` – **Clickable area in an image map**. Not allowed. # **9. Scripting and Styles** * ❌ `<script>` – **JavaScript code**. Not allowed. * ❌ `<noscript>` – **Alternative content for no-script browsers**. Not allowed. * ❌ `<style>` – **Inline CSS styling**. Not allowed. # **10. Miscellaneous** * ❌ `<hr />` – **Horizontal line divider**. Not allowed. * ⚠️ `<br />` – **Line break**. * ⚠️ `<span>` – **Generic inline container** (useful for applying styles). * ⚠️ `<div>` – **Generic block container (root element in FHIR narratives).**