1480740 - br clear attribute do not respect specification

Status: RESOLVED INVALID

(Firefox :: Untriaged, defect)

Description

[Eugen Konkov]

Attachment: delete2.jpg

User Agent: Mozilla/5.0 (X11; Ubuntu; Linux x86_64; rv:61.0) Gecko/20100101 Firefox/61.0
Build ID: 20180712135629

Steps to reproduce:

<br clear="clear: all;">


Actual results:

Firefox do not understand attribute value 'all' (see attached file)

instead it suggest next attributes (see attached file)


Expected results:

https://www.w3.org/TR/html401/present/graphics.html

clear = none|left|right|all [CI]
    Deprecated. Specifies where the next line should appear in a visual browser after the line break caused by this element. This attribute takes into account floating objects (images, tables, etc.). Possible values:

        none: The next line will begin normally. This is the default value.
        left: The next line will begin at nearest line below any floating objects on the left-hand margin.
        right: The next line will begin at nearest line below any floating objects on the right-hand margin.
        all: The next line will begin at nearest line below any floating objects on either margin.

Comment 1

[Eugen Konkov]

Attachment: suggested values for the 'clear' attribute

Comment 2

[Tooru Fujisawa [:arai]]

there are 2 "clear"s,
1st one is deprecated attribute [1], which has "all",
2nd one is CSS property [2], which does not have "all".
and you're specifying "all" for 2nd one, which is invalid.
and also "all" shouldn't be listed in suggestion.

also, <br clear="clear: all;"> is wrong,
clear attribute accepts one of onone|left|right|all, but the value includes unnecessary "clear:" part,
which looks like a style rule.
you should specify <br style="clear: both;">

[1] https://developer.mozilla.org/en-US/docs/Web/HTML/Element/br#Deprecated_attributes
[2] https://developer.mozilla.org/en-US/docs/Web/CSS/clear