Add the same element name using BEM methodology - html

I started to use BEM methodology and i have a question according to this.
Example:
<div class="container">
<div class="container__block-1">
<h1 class="container-title">block1</h1>
</div>
<div class="container__block-2">
<h1 class="container__title container-title">block2</h1>
</div>
<div class="container__block-3">
<h1 class="container__title container-title">block3</h1>
</div>
</div>
How you can see i use: container__title element in block 2 and in block3. I need this to add different margin and padding for h1.
Question: Can i use the same element in container__block-2 and container__block-3 according to BEM methodology?

It is okay to use the same element for another block as long as you want to have the same properties of the above blocks.
However, incase you need a variation, that's when the modifier comes into role.
whenever you need to make a change in only a particular element from a group of elements, you use a modifier there. It is denoted as block__element--modifier.
<div class="container">
<div class="container__block-1">
<h1 class="container-title">block1</h1>
</div>
<div class="container__block-2">
<h1 class="container__title container__title--modifier1 ">block2</h1>
</div>
<div class="container__block-3">
<h1 class="container__title container__title--modifier2">block3</h1>
</div>
</div>

For different variants of same class, u can use --
<div class="container">
<div class="container__block-1">
<h1 class="container-title">block1</h1>
</div>
<div class="container__block-2">
<h1 class="container__title container__title--1">block2</h1>
</div>
<div class="container__block-3">
<h1 class="container__title container__title--2">block3</h1>
</div>
</div>

Related

How to Remove HTML element by class name

I'm changing a database using phpmyadmin with several html pages inside it and I would like to remove, from all these pages, all the <div> and other tags that contain a certain class or id.
Example:
Case 1
<div class="undesirable">
<div class="container">
<div class="row">
<div class="col1"></div>
</div>
</div>
</div>
Case 2
<div class="undesirable">
<div class="container">
<div class="row">
<div class="col1"></div>
<div class="col2"></div>
</div>
</div>
</div>
i would like to remove all <div> that contain the class="undesirable". In some cases, there is still the possibility of appearing as class="pre_undesirable", or something similar.
Initially I thought of using regex, but as there are variations in htmls, code breaks are occurring, as there is no way to know when the <\div> will end.
Possibly the answer would be HTML parser, but I can't understand how to use it. Any indication of where to start?
Since you are dealing with html, you probably should use an html parser and search for the removal target using xpath. To demonstrate, I'll change your html a bit:
$original=
'<html><body>
<div class="undesirable">
<div class="container">
<div class="row">
<div class="col1"></div>
</div>
</div>
</div>
<div class="keepme">
<div class="container">
<div class="row">
<div class="col1"></div>
<div class="col2"></div>
</div>
</div>
</div>
<div class="pre_undesirable">
<div class="container">
<div class="row">
<div class="col1"></div>
<div class="col2"></div>
</div>
</div>
</div>
<div class="keepme">
<div class="container">
<div class="row">
<div class="col1"></div>
<div class="col2"></div>
</div>
</div>
</div>
</body>
</html>
';
$HTMLDoc = new DOMDocument();
$HTMLDoc->loadHTML($original);
$xpath = new DOMXPath($HTMLDoc);
$targets = $xpath->query('//div[contains(#class,"undesirable")]');
foreach($targets as $target){
$target->parentNode->removeChild($target);
}
echo $HTMLDoc->saveHTML();
The output should include only the two "keep me" <div>s.
We can make use D3JS to remove or append any the HTML elements by class name or id.
We can make use of Select() and Selectall() for the selection of the particular elements in the HTML. Incase if we want to append any div tag use append('div') to insert the div for the data.
<script>
function remove()
{
d3.select(.undesirable)
.selectAll("li")
.exit()
.remove()
}
</script>

Should you have ID on columns within a row? bootstrap 4

Is it a good idea to use ID in a bootstrap .col which is in a .row? I read somewhere that you should only have columns under .row . Example:
<div class="container">
<div class="row">
<div id="style1" class="col-12">
</div>
<div id="style2" class="col-12">
</div>
</div>
</div>
or should I make seperate div tags:
<div class="container">
<div class="row">
<div class="col-12">
<div id="style1">
</div>
</div>
<div class="col-12">
<div id="style2">
</div>
</div>
</div>
</div>
It doesn't really matter: The reason why you shouldn't you use an ID for a particular element usually is that you would like to use the CSS applied to that ID more than once: In this case you should use a class instead of an ID.
But if you are sure you will use those settings only once (or if you don't use any CSS for that ID but only want to be able to address that one element via Javascript/jQuery), you can use an ID.

Why are these 2 elements NOT on the same line?

I am using bootstrap to put 2 elements on the same row. However, I am having difficulties getting it to work. Here is what I am inputting:
<div class="container">
<div class="row">
<div class="col-xs-12">
<div>$</div>
<div class="refundNumber">12345</div>
</div>
</div>
</div>
And it outputs:
$
12345
I want it to be:
$12345
I cant simply put the "$" with the numbers because I will be using JS to count up the numbers from zero on a specific event. It doesn't work with the "$" present.
Thank you in advance for helping a beginner!
<div>s are block-level elements that start on new lines. If you want them to be on the same line, you have to make them inline-block or inline elements.
Edit: Using <span> would be the appropriate solution in your case:
Change:
<div>$</div>
<div class="refundNumber">12345</div>
To:
<span>$</span>
<span class="refundNumber">12345</span>
Like "Dov Benyomin" answered, except apply ascii character to ensure compatibility.
<div class="col-xs-12">
<span>$</span>
<span class="refundNumber">12345</span>
</div>
There are multiple ways to do this :
.text{display:inline-block;}
<link href="http://maxcdn.bootstrapcdn.com/bootstrap/3.3.6/css/bootstrap.min.css" rel="stylesheet"/>
<!--Use span tags -->
<div class="row">
<div class="col-xs-12">
<span>$</span>
<span class="refundNumber text">12345</span>
</div>
</div>
<span>OR</span>
<!--Best method use display:inline -->
<div class="row">
<div class="col-xs-12">
<div class="text">$</div>
<div class="refundNumber text">12345</div>
</div>
</div>
<span>OR</span>
<!-- Using col classes of bootstrap -->
<div class="row">
<div class="col-xs-12">
<div class="col-xs-1">$</div>
<div class="refundNumber">12345</div>
</div>
</div>
Like Micheal pointed out, use ASCII codes. ("& #36;" for "$")

Bootstrap 3: text on the left and right in the page header

I'm trying to make a simple page header with bootstrap 3. Here's the code:
<div class="page-header">
<h1>Text on the left</h1>
<h3 class="text-right">This to the right but on the same line</h3>
</div>
Here's a jsfiddle to try: http://jsfiddle.net/DTcHh/2450/
Basically I just want to have text on the left and right inside the page-header, but on the same line.
The usual tricks of using float:left and float:right as with normal html "break" the page-header, meaning the text is properly aligned but is displayed outside (under) the page-header, which remains empty.
Any clues?
you can use "pull-right" and "pull-left" classes, with "clearfix" class after.
(Bootstrap 3)
<div class="page-header">
<div class="pull-left">
<h1>Text on the left</h1>
</div>
<div class="pull-right">
<h3 class="text-right">This to the right but on the same line</h3>
</div>
<div class="clearfix"></div>
</div>
also you can adjust line height on the h3 tag in the right, if you want to match with h1
Fiddle for Bootstrap 3: https://jsfiddle.net/darkosss/dy9wjk2q/
(as of Bootstrap 4.1)
use float-left and float-right instead. You still need the clearfix.
<div class="page-header">
<div class="float-left">
<h1>Text on the left</h1>
</div>
<div class="float-right">
<h3 class="text-right">This to the right but on the same line</h3>
</div>
<div class="clearfix"></div>
</div>
Fiddle for Bootstrap 4: https://jsfiddle.net/darkosss/eozs65qb/
if you are using Bootstrap, you should do something like
<div class="page-header">
<div class="row">
<div class="col-md-6">
<h1>Text on the left</h1>
</div>
<div class="col-md-6">
<h3 class="text-right">This to the right but on the same line</h3>
</div>
</div>
</div>
if you want to "stylize" the h1, h2, etc, change it to "display:block" and you'll have to add a "width" attribute anyway
use the following structure to position with bootstrap:
<div class= 'container'>
<div class='row'>
<div class ='md-col-4'>
<h1>Text on the left</h1>
</div>
<div class = 'md-col-4.col-md-offset-4'>
<h3 class='text-right'>This to the right but on the same line</h3>
</div>
</div>
Think of the row as a grid across of 12. So fist 4 left 3rd. 2nd div is the 3rd third with a 4 grid offset or gap.
http://getbootstrap.com/css/

Selecting the p tag without any attribute using xpath

I would like to select only the p tag without any attributes from the following html code.
<div id="review">
<div class="partial_review">
<div class="1">.....</div>
<div class="2">
<div class='inner_Bubble'>
<div class="entry">
<p class="partial_entry>it was a good...</p>
</div>
</div>
</div>
</div>
<div class="full_review">
<div class="1">.....</div>
<div class="2">
<div class='inner_Bubble'>
<div class="entry">
<p>it was a good trip.</p>
</div>
</div>
</div>
</div>
</div>
I have tried //div[#class='entry']/p[not class = 'partial_entry']/text(). But, its not working.
If you want all p elements with no attributes at all then the simplest path would be
//p[not(#*)]
If you want to check for the absence of class specifically then
//p[not(#class)]