not valid HTML error

I got this error while validating my page:

document type does not allow element "UL" here; assuming missing "LI"
start-tag.

Here's the suspicious code. The problem seems to be that I can't nest
list blocks within other list blocks. But if not, how can I create this
"subnote" effect?

Thanks.


<ol>
<li>XRC creates an <code>object</code> node that represents the
particular widget you are making.</li>
<li>Instead of the call to <code>wx.Button</code>, XRC uses a
<code>class</code> attribute with the value "wxButton."</li>
<ul>
<li>Note that XRC can only use the C++ class names, i.e.
there is no dot operator.</li>
</ul>
<li>XRC uses an attribute called <code>name</code> to refer to
this object in your Python program. The <code>name</code> attribute
actually corresponds to the <code>id</code> parameter in the widget's
constructor. You assign it a string value in the XRC file and wxPython
will create a unique ID for it internally.</li>
<ul>
<li>This value does <em>not</em> have to be the same as the
name of the variable you will use to refer to this widget in your
program. The value of <code>name</code> is not the name you will use to
refer to this object in your program.</li>
</ul>
<li>Once this object node is created, the keyword parameters of
the Button's constructor become child nodes, each with the value of that
particular argument. So here we have the <code>label</code> node created
with the text that will appear in the Button, just as if we had manually
written the Button constructor with the <code>label</code> argument.</li>
<li>The <code>parent</code> argument is not created as a child
node. Instead, the entire Button object node will be a child node of a
Panel object, which in turn will be a child node of a Frame object. This
is how wxPython knows the parent-child relationship. Below you can see
the entire structure of a Frame with a Button.</li>
</ol>

John Salerno wrote:

I got this error while validating my page:

document type does not allow element "UL" here; assuming missing "LI"
start-tag.

Here's the suspicious code. The problem seems to be that I can't nest
list blocks within other list blocks. But if not, how can I create this
"subnote" effect?

Your code:

ol
li>....</li
li>....</li
ul
li>....</li
/ul
li>....</li
/ol

Correct code:

<ol>
<li>....</li>
<li>....
<ul>
<li>....</li>
</ul>
</li>
<li>....</li>
</ol>


--
Els http://locusmeus.com/
accessible web design: http://locusoptimus.com/

Now playing: Annie Lennox - Little Bird

John Salerno wrote:

I got this error while validating my page:

I wonder if someone could explain this to me also. It validates, but I
don't understand the warnings:

Warnings
URI : http://python.johnjsalerno.com/xrc_tutorial.css

* Line : 6 (Level : 1) This property applies to block-level
elements. : h1
* Line : 12 (Level : 1) You have no color with your
background-color : .codeblock

Valid CSS information

* body {
o font : small/1.5em Verdana, Helvetica, Arial, sans-serif;
}
* h1 {
o text-align : center;
}
* .codeblock {
o font : medium/1.2em monospace;
o border : thin dotted gray;
o background-color : #ebe5e5;
}

Els wrote:

Your code:

Correct code:

Thanks!

John Salerno wrote:

John Salerno wrote:
I got this error while validating my page:

I wonder if someone could explain this to me also. It validates, but I
don't understand the warnings:

Warnings
URI : http://python.johnjsalerno.com/xrc_tutorial.css

* Line : 6 (Level : 1) This property applies to block-level
elements. : h1

This one is superfluous imo, as h1 *is* a block-level element. It's
perfectly correct and logical to set text-align:center for h1. I don't
know why the validator feels the need to call your attention to it.

* Line : 12 (Level : 1) You have no color with your
background-color : .codeblock

This is because you have not set a colour for the text in .codeblock.
This could potentially cause an inherited text colour to be the same
as the set background-color. Not an error, but a warning to pay
attention to styles that could cause problems in certain situations.

--
Els http://locusmeus.com/
accessible web design: http://locusoptimus.com/

Now playing: Daryl Hall and John Oates - Rich Girl

Els wrote:

* Line : 12 (Level : 1) You have no color with your
background-color : .codeblock

This is because you have not set a colour for the text in .codeblock.
This could potentially cause an inherited text colour to be the same
as the set background-color. Not an error, but a warning to pay
attention to styles that could cause problems in certain situations.

Thanks once more! If I wanted to do this, would I just use the 'color'
property to set text color? It seems too general of a name, but that's
what's listed on the reference site I'm looking at.

John Salerno wrote:

Els wrote:

* Line : 12 (Level : 1) You have no color with your
background-color : .codeblock

This is because you have not set a colour for the text in .codeblock.
This could potentially cause an inherited text colour to be the same
as the set background-color. Not an error, but a warning to pay
attention to styles that could cause problems in certain situations.


Thanks once more! If I wanted to do this, would I just use the 'color'
property to set text color? It seems too general of a name, but that's
what's listed on the reference site I'm looking at.

Nevermind, a simple test showed that this is the property to use! Seems
like it should be 'text-color', or something more specific...

Scripsit John Salerno:

URI : http://python.johnjsalerno.com/xrc_tutorial.css

* Line : 6 (Level : 1) This property applies to block-level
elements. : h1

How did you get that warning? Using the W3C "CSS Validator" on your CSS
code, I get no such message, even when I have selected "All" in the
"Warnings" menu.

--
Jukka K. Korpela ("Yucca")
http://www.cs.tut.fi/~jkorpela/

Jukka K. Korpela wrote:

Scripsit John Salerno:

URI : http://python.johnjsalerno.com/xrc_tutorial.css

* Line : 6 (Level : 1) This property applies to block-level
elements. : h1

How did you get that warning? Using the W3C "CSS Validator" on your CSS
code, I get no such message, even when I have selected "All" in the
"Warnings" menu.

Hmm, I just tried it again and you're right, it's not there now. But it
was earlier, and I haven't changed it since then.

Beauregard T. Shagnasty wrote:

John Salerno wrote:

* body {
o font : small/1.5em Verdana, Helvetica, Arial, sans-serif;
}

Please see:
http://k75s.home.att.net/fontsize.html

Thanks.

Interesting, thanks. I did notice the IE did some funky stuff with the
fonts, so I changed it to what it is now. Perhaps I should do % instead.