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

abbr

title

article

style

aside

style

audio

autoplay, controls, loop, muted, preload

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

blockquote

style

code

style

dd, dl, dt

style

details

style

div

style, align, aria-label, aria-hidden

figcaption

style

figure

style

font

size, color, style

footer

style

h1, h2, h3, h4, h5, h6

style

header

style

img

src, width, height, border, alt, style

main

style

mark

style

nav

style

p

style

pre

style

section

style

source

media, src, type

span

style

sub

style

summary

style

sup

style

table

width, height, cellpadding, cellspacing, border, style

td, th

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

time

style

tr

height, valign, align, style

video

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

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.