Patients Know Best’s care plans accept HTML and CSS for rich multimedia displays of information to the patient. For security purposes, PKB cannot accept all tags in the medical record. This guide shows what care tags work and how they work within a care plan.
1. Allowed Tags Overview
1.1 Structural Tags
<div>
: General block container.<span>
: General inline container.
1.2 Text Formatting Tags
<p>
,<h1>
–<h6>
,<b>
,<i>
,<u>
,<strong>
,<em>
,<small>
,<sub>
,<sup>
,<blockquote>
,<code>
.
1.3 List Tags
<ul>
,<ol>
,<li>
.
1.4 Table Tags
<table>
,<thead>
,<tbody>
,<tfoot>
,<tr>
,<th>
,<td>
.
1.5 Image Tags
<img>
:Allowed attributes:
src
,alt
,width
,height
.
1.6 Anchor Tags
<a>
:Allowed attributes:
href
,target="_blank"
.
1.7 Empty Tags
Tags explicitly allowed to be empty:
<br>
,<hr>
.
2. Allowed CSS Properties
Only the following CSS properties are allowed:
2.1 Text Styling
font-size
font-style
font-weight
text-align
text-decoration
line-height
letter-spacing
color
2.2 Box Model
margin
padding
border
width
height
2.3 Background and Positioning
background-color
background-image
position
(onlystatic
,inherit
)
3. Usage Rules
3.1 General Attributes
The following attributes are allowed on all tags:
id
class
lang
title
Attribute values must comply with regex rules defined in
<common-regexps>
:id
: Letters and numbers only.Colours:
#hex
, named colours,rgb()
.
3.2 Value Restrictions
Only use values explicitly listed in
<literal-list>
or<regexp-list>
.
3.3 Empty Tags
Use
<br>
or<hr>
for line breaks or horizontal rules without adding content.
Appendix: Working Examples
1. Section Divider
Tag:
<div>
Purpose: The
<div>
tag is used to create a section divider with specific styling, such as a background colour or alignment.Allowed Attributes:
class
: Specifies a CSS class, e.g.,cp_secondaryTitle
.Inline styles (
style
): Only validated properties such as:height
background-color
text-align
margin-bottom
Example:
<div class="cp_secondaryTitle"> // Section Title Goes Here // </div>
2. Separator
Tag: <hr>
Purpose: Creates a horizontal line to visually separate content.
Allowed Attributes:
Inline styles (style): Only validated properties such as:
height
background-color
margin-top
margin-bottom
Example:
<hr style="height: 3px; background-color: #f5f8f9; margin-top: 40px; margin-bottom: 40px;"/>
3. Textarea
Tag:
<textarea>
Purpose: Allows users to input multi-line text.
Allowed Attributes:
id
: Unique identifier following[a-zA-Z0-9\-_\$]+
.name
: Required and follows the same pattern asid
.rows
: Specifies the number of visible lines (positive integer).placeholder
: Optional text hint for the input area.Inline styles (
style
): Only validated properties such as:width
Example:
<div class="row" style="margin-top: 15px;"> <div class="col-sm-12"> <label for="cp_">Enter your text:</label> <textarea class="form-control" name="REPLACE" id="REPLACE" rows="3" style="width: 100%;"></textarea> </div> </div>
4. Text Input
Tag:
<input>
Purpose: Creates a single-line text box where users can type information.
Allowed Attributes:
type
: Specifies the type of input, e.g.,text
.id
: Unique identifier following[a-zA-Z0-9\-_\$]+
.name
: Used to identify the input when the form is submitted.class
: Assigns a CSS class to the input.Inline styles (
style
): Only validated properties such as:width
Example:
<div class="row" style="margin-top: 15px;"> <div class="col-sm-12"> <label for="cp_"></label> <input type="text" name="REPLACE" id="REPLACE" class="form-control" style="width: 100%;"/> </div> </div>
5. Date Input
Tag:
<input>
Purpose: Creates a date picker field for users to select a date.
Allowed Attributes
type
: Must be set todate
.id
: Unique identifier following the regex pattern[a-zA-Z0-9\-_\$]+
.name
: Specifies the name for the input element in the form submission, following the same regex asid
.placeholder
: Provides a hint to the user, allowing any text string.class
: Assigns a CSS class to apply predefined styles (e.g.,form-control
).style
: Allows inline styles with validated CSS properties, such aswidth
.value
: Specifies a pre-filled date value, matching theyyyy-mm-dd
format.
Example:
<div class="row" style="margin-top: 15px;"> <div class="col-sm-12"> <label for="cp_">Select a date:</label> <input type="date" name="REPLACE" id="REPLACE" class="form-control" placeholder="dd/mm/yyyy"/> </div> </div>
6. Checkbox
Tags:
<input>
and<label>
Purpose: Allows users to select multiple options from a group.
Allowed Attributes:
type
: Must becheckbox
.id
: Unique identifier.name
: Groups related checkboxes for submission.value
: Specifies the value of the checkbox.
Example:
<div class="row" style="margin-top: 15px;"> <div class="col-sm-12"> <p>Choose options:</p> </div> <div class="col-sm-12"> <div class="form-check col-xs-12 pull-left"> <input class="form-check-input form-control" type="checkbox" name="REPLACE" id="REPLACE1" value="Option1"/> <label class="col-xs-10 pull-right" for="REPLACE1">Option 1</label> </div> <div class="form-check col-xs-12 pull-left"> <input class="form-check-input form-control" type="checkbox" name="REPLACE" id="REPLACE2" value="Option2"/> <label class="col-xs-10 pull-right" for="REPLACE2">Option 2</label> </div> </div> </div>
7. Radio Buttons
Tags:
<input>
and<label>
Purpose: Allows users to select one option from a group.
Allowed Attributes:
type
: Must beradio
.id
: Unique identifier.name
: Groups related radio buttons.value
: Specifies the value of the button.
Example:
<div class="row" style="margin-top: 15px;"> <div class="col-sm-12"> <p>Choose one:</p> </div> <div class="col-sm-12"> <div class="form-check"> <input class="form-check-input col-xs-1" type="radio" name="REPLACE" id="Yes" value="Yes"> <label class="form-check-label col-xs-10" for="Yes">Yes</label> </div> <div class="form-check"> <input class="form-check-input col-xs-1" type="radio" name="REPLACE" id="No" value="No"> <label class="form-check-label col-xs-10" for="No">No</label> </div> </div> </div>
8. Professional Lock Sections
Tag:
<fieldset>
Purpose: The
<fieldset>
tag groups form elements and is used here to define content restricted for professional users.Allowed Attributes:
class
: Used to apply specific styles; in this case,pro-only
.Inline styles (
style
): None
<fieldset class="pro-only"> // Restricted content goes here // </fieldset>
9. Collapsible Section
Tags:
<details>
and<summary>
Purpose: Creates an expandable section where the user can toggle visibility of the content by clicking a title.
Allowed Attributes:
<details>
: No specific attributes are required for basic functionality.<summary>
: Can include other valid tags (e.g.,<div>
and<span>
) for styling.
Basic Example:
<details> <summary> <div class="row collapsable-section-title-container cp_secondaryTitle"> <div class="col-sm-12"> <h3>Click to Expand</h3> </div> </div> </summary> <p>This is the content inside the collapsible section.</p> </details>
Professional Lock Example:
<fieldset class="pro-only"> <details> <summary> <div class="row collapsable-section-title-container cp_secondaryTitle"> <div class="col-sm-12"> <h1>Clickable Title for the Section</h1> </div> <span class="icon details-closed"></span> </div> </summary> <p>This is restricted collapsible content.</p> </details> </fieldset>
This document only includes allowed tags and attributes based on the validator's configuration. Each example demonstrates practical usage for clarity. The examples given conform with WCAG AA accessibility and system styling. It is strongly recommended to use these examples to maintain this useability.
Appendix: Allowed CSS Properties
This section lists all the CSS properties and their permissible values that are allowed through the validator.
1. General Properties
1.1 position
Allowed Values:
relative
,absolute
,static
,inherit
.
1.2 border-radius
Allowed Values:
Length values (e.g.,
px
,em
,%
).
1.3 opacity
Allowed Values:
Numbers (0.0–1.0) or percentage values.
2. Background Properties
2.1 background
Description: Shorthand for other background-related properties.
Allowed Sub-Properties:
background-color
background-image
background-repeat
background-attachment
background-position
2.2 background-attachment
Allowed Values:
scroll
,fixed
,inherit
.
2.3 background-color
Allowed Values:
Named colours (e.g.,
red
,blue
).Hex codes (e.g.,
#ff0000
,#fff
).RGB values (e.g.,
rgb(255, 0, 0)
).transparent
,inherit
.
3. Text and Visual Properties
3.1 color
Allowed Values:
Named colours (e.g.,
red
,blue
).Hex codes (e.g.,
#ffffff
,#000
).RGB values (e.g.,
rgb(255, 0, 0)
).System colours.
3.2 text-shadow
Allowed Values:
none
,inherit
.Length values for offsets and colour values for shadows.
3.3 letter-spacing
Allowed Values:
normal
,inherit
, length values.
3.4 line-height
Allowed Values:
normal
,inherit
, number, length, or percentage.
3.5 word-spacing
Allowed Values:
normal
,inherit
, length values.
4. Box Model Properties
4.1 margin
Allowed Values:
auto
,inherit
, positive lengths or percentages.
4.2 border-spacing
Allowed Values:
inherit
, lengths (positive only).
4.3 clip
Allowed Values:
auto
,inherit
.
4.4 overflow
Allowed Values:
visible
,hidden
,scroll
,inherit
.
5. List and Display Properties
5.1 list-style-type
Allowed Values:
disc
,circle
,square
,decimal
,lower-roman
,upper-roman
.
5.2 list-style-position
Allowed Values:
inside
,outside
,inherit
.
5.3 list-style-image
Allowed Values:
none
,inherit
.
6. Interactive and Cursor Properties
6.1 cursor
Allowed Values:
auto
,pointer
,move
,text
,default
,inherit
.
6.2 outline-color
Allowed Values:
Colour values,
invert
,inherit
.
Appendix: Raw XML list
-- tag rules tag name="iframe" tag name="label" tag name="form" tag name="button" tag name="input" tag name="select" tag name="option" tag name="optgroup" tag name="textarea" tag name="h1" tag name="h2" tag name="h3" tag name="h4" tag name="h5" tag name="h6" tag name="p" tag name="i" tag name="b" tag name="u" tag name="strong" tag name="em" tag name="small" tag name="big" tag name="pre" tag name="code" tag name="cite" tag name="samp" tag name="sub" tag name="sup" tag name="strike" tag name="center" tag name="blockquote" action="va tag name="hr" tag name="br" tag name="s" tag name="ins" tag name="del" tag name="strike" tag name="tt" tag name="big" tag name="caption" tag name="q" tag name="font" tag name="a" tag name="base" tag name="style" tag name="span" tag name="div" tag name="img" tag name="ul" tag name="ol" tag name="li" tag name="dd" tag name="dl" tag name="dt" tag name="thead" tag name="tbody" tag name="tfoot" tag name="table" tag name="td" tag name="th" tag name="tr" tag name="colgroup" tag name="col" tag name="fieldset" tag name="details" tag name="summary" tag name="legend" --CSS rules property name="azimuth" property name="background" property name="background-attachment property name="background-color property name="background-image property name="background-position property name="background-repeat property name="background-size property name="border-collapse property name="border-color property name="border-top property name="border-right property name="border-bottom property name="border-left property name="bottom" property name="caption-side property name="clear" property name="color" property name="cue-after property name="cue-before property name="direction" property name="display" property name="elevation" property name="empty-cells property name="float" property name="font-size property name="font-size property name="font-stretch property name="font-style property name="font-variant property name="font-weight property name="height" property name="left" property name="letter-spacing property name="line-height property name="list-style property name="list-style property name="list-style property name="marker-offset property name="max-height property name="max-width property name="min-height property name="min-width property name="orphans" property name="outline-color property name="overflow" property name="page-break property name="page-break property name="page-break property name="pause-after property name="pause-before property name="pitch" property name="pitch-range property name="position" property name="richness" property name="right" property name="size" property name="speak" property name="speak-header property name="speak-numeral property name="speak-punctuation property name="speech-rate property name="stress" property name="table-layout property name="text-indent property name="text-transform property name="top" property name="unicode-bidi property name="vertical-align property name="visibility" property name="volume" property name="white-space property name="widows" property name="width" property name="word-spacing property name="word-wrap property name="border-style property name="border-top property name="border-right property name="border-bottom property name="border-left property name="border-top property name="border-right property name="border-bottom property name="border-left property name="border-width property name="margin" property name="margin-top property name="margin-right property name="margin-bottom property name="margin-left property name="outline-style property name="outline-width property name="padding" property name="padding-top property name="padding-right property name="padding-bottom property name="padding-left property name="border" property name="border-top property name="border-right property name="border-bottom property name="border-left property name="cue" property name="list-style property name="marks" property name="outline" property name="pause" property name="text-decoration property name="border-spacing property name="clip" property name="counter-increment property name="clip" property name="cursor" property name="text-shadow property name="font" property name="font-family property name="page" property name="play-during property name="text-align property name="voice-family property name="position" property name="border-radius property name="opacity"
This list represents all CSS properties and their values that the validator allows.
Notes
If specific use cases fall outside these guidelines, consult with a PKB team member for validation.