# Field Properties
## Allowed HTML tags in Field Labels / PreText
TrialGrid allows the following HTML tags to be used in Field Label values. All other HTML tags are automatically removed from the Field Label.
> **Warning:** When using HTML content always test how output PDFs are displayed by Medidata Rave.
- **HTML Tag:** a
**Description:** HyperLink
**Example:**
```html
Link text
```
- **HTML Tag:** b
**Description:** Bold
**Example:**
```html
Bold
```
- **HTML Tag:** br
**Description:** Line break / newline
**Example:**
```html
Line 1
Line 2
```
- **HTML Tag:** font
**Description:** Set font size / color / face
**Example:**
```html
This is large red text
```
- **HTML Tag:** i
**Description:** Italic
**Example:**
```html
Italic
```
- **HTML Tag:** h1
**Description:** Heading Level 1
**Example:**
```html
Heading 1
```
- **HTML Tag:** h2
**Description:** Heading Level 2
**Example:**
```html
Heading 2
```
- **HTML Tag:** h3
**Description:** Heading Level 3
**Example:**
```html
Heading 3
```
- **HTML Tag:** h4
**Description:** Heading Level 4
**Example:**
```html
Heading 4
```
- **HTML Tag:** ol
**Description:** Ordered list (numbered elements)
**Example:**
```html
- Item 1
- Item 2
```
- **HTML Tag:** p
**Description:** Paragraph
**Example:**
```html
A paragraph of text
```
- **HTML Tag:** sup
**Description:** Superscript
**Example:**
```html
cm2
```
- **HTML Tag:** small
**Description:** Small text
**Example:**
```html
Alice felt tiny
```
- **HTML Tag:** u
**Description:** Underline e.g.
**Example:**
```html
Underline
```
- **HTML Tag:** ul
**Description:** Unordered list (bulleted list)
**Example:**
```html
```