Br Clear="All" VS CSS Solution

br clear=all vs css solution

On the next item you can use the style clear:left.

Another alternative is to set the overflow style on the parent of the floating element to make it contain it, like overflow:hidden.

what's the problem with css br clear?

Setting clear to both with not allow other elements to float on either the left or right side of the element. The class below is an easy way to add this anywhere.

.clear {
    clear:both;
}

So when you want to clear something (that is, if you were to float the next element to the left, it would be below the current element and to the left, instead of left of it) you'd simply add the .clear class.

The problem with the following code is that if later on you decide that you don't want to clear everything after the 'something' class, then you have to go through your HTML and remove the br clear="all" wherever you have that 'something' class.

<div class="something">Cool content.</div>
<br clear="all">
<div class="other">Cool content again.</div>

Instead you could do something like this:

.something {
    float: left;
}
.other {
    clear :both;
    float: left;
}

<div class="something">Hi!</div>
<div class="other">Hi again from below!</div>

That way if later on you decide to float all blocks with the 'other' class then you can just remove the 'clear:both;' from the CSS once.

How to change the height of a br?

Css:

br {
   display: block;
   margin: 10px 0;
}

The solution is probably not cross-browser compatible, but it's something at least. Also consider setting line-height:

line-height:22px;

For Google Chrome, consider setting content:

content: " ";

Other than that, I think you're stuck with a JavaScript solution.

Change br height using CSS

You can't change the height of the br tag itself, as it's not an element that takes up space in the page. It's just an instruction to create a new line.

You can change the line height using the line-height style. That will change the distance between the text blocks that you have separated by empty lines, but natually also the distance between lines in a text block.

For completeness: Text blocks in HTML is usually done using the p tag around text blocks. That way you can control the line height inside the p tag, and also the spacing between the p tags.

floating elements br clear=both/ in a better css way?

You can set the containing elements overflow property to something other than visible.

Apply a class to a br tag?

One application I can think off is adding using it with pseudo-elements, such as :before or :after, for instance adding some text beneath a horizotal line:

hr.something:after  { content: "Some text"  }

When are br elements ignored when within a paragraph?

In my opinion most browsers follow the WHATWG specification and I would do it also. World Wide Web Consortium (W3C) has On 28 May 2019 announced that WHATWG would be the sole publisher of the HTML and DOM standards. If we have in this specification following rules only, then I would follow those rules.

WHATWG has following recommendations for br element:

The br element represents a line break.

Note: While line breaks are usually represented in visual media by physically moving subsequent text to a new line, a style sheet or
user agent would be equally justified in causing line breaks to be
rendered in a different manner, for instance as green dots, or as
extra spacing.

br elements must be used only for line breaks that are actually part
of the content, as in poems or addresses.

The following example is correct usage of the br element:

<p>P. Sherman<br>
42 Wallaby Way<br>
Sydney</p>

br elements must not be used for separating thematic groups in a
paragraph.

The following examples are non-conforming, as they abuse the br
element:

<p><a ...>34 comments.</a><br>
<a ...>Add a comment.</a></p>
<p><label>Name: <input name="name"></label><br>
<label>Address: <input name="address"></label></p>

Here are alternatives to the above, which are correct:

<p><a ...>34 comments.</a></p>
<p><a ...>Add a comment.</a></p>
<p><label>Name: <input name="name"></label></p>
<p><label>Address: <input name="address"></label></p>

If a paragraph consists of nothing but a single br element, it
represents a placeholder blank line (e.g. as in a template). Such
blank lines must not be used for presentation purposes.

Any content inside br elements must not be considered part of the
surrounding text.

Note: This element has rendering requirements involving the bidirectional algorithm.

Source: WHATWG: The br element

In your examples you have br elements in <br></p> and in <br></a></p> on the end of <p> element. The new line on the end of this element does nothing, but only in this case. In such of this cases you can ignore it. It is also the same in the case of br elements in <br></a></div> and in <br></div> on the end of <div> element.

Cite from WHATWG recommendations (see above): If a paragraph consists of nothing but a single br element, it represents a placeholder blank line. Also it is not empty (like user kalkronline wrote). And in case of W3C and WHATWG opinions conflict user agents have to follow WHATWG recomandations (see above).

Do not forget about style possibility (for ex. clear) for br element.

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Update from 25/06/2020

I want to post and explain the cite from WHATWG recommendations again(see above):

If a paragraph consists of nothing but a single br element, it represents a placeholder blank line.

This is showed like:

p{border:1px dashed red}

<b>1. example:</b>
<code><p><br></p></code>
<p><br></p>
<b>2. example:</b>
<code><p>I am a line<br><br></p></code>
<p>I am a line<br><br></p>
<b>3. example:</b>
<code><p></p></code>
<p></p>

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