Supported HTML

You can use HTML in the ArcGIS Online website when a rich text editor is included, such as in item pages, group descriptions, map pop-ups, and configurable apps.

HTML tags and attributes

Below is a table of the supported HTML tags and attributes you can use.

TagAttribute

a

href, style

img

src, width, height, border, alt, style

video

autoplay, controls, height, loop, muted, poster, preload, width

audio

autoplay, controls, loop, muted, preload

source

media, src, type

span

style

table

width, height, cellpadding, cellspacing, border, style

div

style, align

font

size, color, style

figure

style

figcaption

style

dd, dl, dt

style

h1, h2, h3, h4, h5, h6

style

tr

height, valign, align, style

td, th

height, width, valign, align, colspan, rowspan, nowrap, style

p

style

b, strong, i, em, u, ul, ol, li, tbody, br, hr

abbr

title

sub

style

sup

style

HTML considerations

Keep the following in mind:

  • HTML tags not listed in the table above are not supported and will be filtered out.
  • Allowed protocols for href and src are https, tel, and mailto.
  • Tags are automatically closed if not closed.
  • <>&s are escaped outside of legal tags if not escaped using &lt;&gt;&amp;&quot.
  • UNC links are not supported.
  • When an a tag is used, the href target URL always opens in a new browser tab.