All tags and attributes not listed here will be filtered out by the editor. Contents of this list may change, but existing cache listings will not be affected by that.

Tags and attributes shown in italics are discontinued in HTML5 and should be avoided.

The following HTML tags are allowed:

!--, a, abbr, acronym, address, area, b, bdo, big, blockquote, br, caption, cite, code, col, colgroup, dd, del, dfn, div, dl, dt, em, fieldset, font¹, h1, h2, h3, h4, h5, h6, hr, i, img, ins, kbd, legend, li, map, ol, p, pre, q, samp, small, span, strike¹, strong, sub, sup, table, tbody, td, th, thead, tfoot, tr, tt, u, ul, var

Replacements for unsupported or obsolete tags:

acronym →   abbr
big →   span style="font-size:larger"
center →   p style="text-align:center"
s →   span style="text-decoration:line-through"
tt →   code

¹ Are converted to other elements in input mode "Editor".

The following common HTML attributes are allowed:

class, dir, id², lang, style, title

The following special HTML attributes are allowed:

a href, name², rel, target='_blank'
area alt, coords, href, shape, target='_blank'
bdo dir
blockquote cite
col align, span, width
colgroup span
del cite
font color, size
hr size, noshade
img align, alt, border, height, hspace, src, usemap², vspace, width
ins cite
map name²
ol compact, type
q cite
table align, bgcolor, border, cellpadding, cellspacing, frame, rules, summary, width
td, th abbr, align, bgcolor, colspan, height, nowrap, rowspan, scope, valign, width
tr align, bgcolor, valign
ul compact

Replacements for unsupported or obsolete attributes:

align →   style="text-align:...; vertical-align:..."
bgcolor →   style="background-color:..."
border →   style="border:..."
color →   style="text-color:..."
hspace →   style="margin-left:...; margin-right:..."
name →   id="..."
vspace →   style="margin-top:...; margin-bottom:..."
width →   style="width:..."

² IDs and names must start with custom_.

The following CSS styles are allowed:

background, background-attachment, background-color, background-image, background-position, background-repeat

border, border-bottom, border-bottom-color, border-bottom-style, border-bottom-width, border-collapse, border-color border-left, border-left-color, border-left-style, border-left-width, border-right, border-right-color, border-right-style, border-right-width, border-spacing border-style border-top, border-top-color, border-top-style border-width

caption-side

clear

color

display

float

font, font-family, font-size, font-style, font-variant, font-weight

height

letter-spacing

line-height

list-style, list-style-image, list-style-position, list-style-type

margin, margin-bottom, margin-left, margin-right, margin-top

min-height, max-height, min-width, max-width

padding, padding-bottom, padding-left, padding-right, padding-top

table-layout

text-align, text-decoration, text-indent, text-transform

vertical-align

visibility

white-space

width

word-spacing