# HTML Sanitization

## Description

For sanitizing HTML, we have certain rules that we adhere to. We only allow a certain set of HTML Tags, HTML Attributes and HTML Styles in the body. All other HTML information is stripped by default.

### White-listed HTML TAGS: <br>

• a

• p

• b, i, strong, em, u, s

• pre

• blockquote

• span

• img

• br

• td, tr, th, tbody, thead, table

• caption

• li, hr, ul, ol

• h1, h2, h3, h4, h5

• summary

• div

• iframe

• code

### White-listed HTML ATTRS: <br>

• src

• href

• style

• colspan

• border

• cellpadding

• cellspacing

• align

• class

• height

• width

• frameborder

• target

• rel

### White-listed HTML STYLES: <br>

• width

• height

• margin

• margin-left

• margin-right

• margin-top

• margin-bottom