Develop Reference

Bootstrap 4: switch between cols on mobile

I've built a standard layout with a sidebar using Bootstrap's grid system (EDIT: I'm using Bootstrap 4 but could still switch). It looks like this:
<div class="row">
<div class="col-md-3">
...
</div>
<div class="col-md-9">
<div class="row">
<div class="col-md-4">...</div>
<div class="col-md-4">...</div>
<div class="col-md-4">...</div>
</div>
</div>
</div>
On mobile, the red area would be above the green one. I need to be able to switch between them in a way that is more convenient than scrolling, for example a switch button:
Also note the different oder of elements in the green area.
Is there a smart way to do this? Or do I have to alter the dom with JavaScript? Thanks in advance :)

You can use jQuery to toggle one of the BS4 flexbox utility classes. For example, apply the flex-last on the first (col-md-3) column.
To switch the order on mobile using a button, toggle the flex-last class...
$('#btnToggle').click(function(){
$('.col-md-3').toggleClass('flex-last');
})
EDIT: To show only one at a time (switch the visibility of the 2 divs using a button) toggle the hidden-sm-down class instead...
$('#btnToggle').click(function(){
$('.col-md-3, .col-md-9').toggleClass('hidden-sm-down');
})
Demo
In Bootstrap 4, column order can be toggled using CSS only, but this switches the cols based on screen width, and therefore is not triggered by the button.
<div class="row">
<div class="col-md-3 flex-last flex-md-unordered">
...
</div>
<div class="col-md-9">
<div class="row">
<div class="col-md-4">...</div>
<div class="col-md-4">...</div>
<div class="col-md-4">...</div>
</div>
</div>
</div>
Update
As of Bootstrap 4 Beta 3, the ordering classes are named order-*, such as order-1, order-md-2, etc..

Bootstrap 4 uses Flexbox, which means you could utilise the order in which things are displayed.
As usual, you can specify how it's displayed on different viewports using classes like order-last and order-sm-unordered.
flexbox/order documentation

responsive html content carousel plugin or without

I'm looking to make a responsive html content carousel. As shown on the image below.
Trying to use jQuery Cycle2, for this but couldn't achieve the effect I was looking for. Searching for a plugin that would be able to do this I figured that maybe the simplest solution would be to try to use plain JavaScript/jQuery.
Found this topic jquery carousel - without a plugin
Right now I'm struggling to achieve this with the responsive elements.
Any help would be greatly appreciated - I'm not saying this has to be without a plugin just something that's not to hard to implement and maybe without too much overhead.

Use "bootstrap" : http://getbootstrap.com/css/#grid
You can achieve yr desired style by just writing..
<div class="container">
<div class="row">
<div class="col-xs-12 col-sm-12 col-md-4 col-lg-4> YOUR FIRST BOX HERE</div>
<div class="col-xs-12 col-sm-12 col-md-4 col-lg-4> YOUR SECOND BOX HERE</div>
<div class="col-xs-12 col-sm-12 col-md-4 col-lg-4>YOUR THIRD BOX HERE</div>
</div>
</div>

Bootstrap: collapsed text conflicts with footer

Hi I have this page, built upon Bootstrap, and the thing is that if you click the "See Wikipedia" button, the content will flush the whole page, however the page height does not change and the footer is overwritten in a very funny ugly way. Is it possible to change this? I have tried to set some overflow but it does not help much.

You can do this small changes :
Change
<div id="debate-title" class="container">
By
<div id="debate-title" class="container col-xs-6 ">
Change
<footer class="site-footer">
By
<footer class="site-footer col-xs-12">

Bootstrap 3 > trying to create columns with equal heights

I've only just started learning so please stick with me and I'll try provide as much info as I can.
Using Bootstrap 3 I have been attempting to adjust a number of content areas so that they have the same height. I have 4 per row with an unspecified amount of columns (I'm looping through a php array to determine this). Essentially no matter how many content areas I need to display they should all use the same height, or at the very least the same height as the other three on it's row.
I have been using this jquery library > https://github.com/mattbanks/jQuery.equalHeights > which works great but whenever I resize the page the heights of the content areas don't update (if I drag the screen to a new size and hit refresh the heights re-adjust to the correct position)
I have also looked at a few other solutions such as > Twitter Bootstrap - Same heights on fluid columns but this doesn't seem to work when I adjust it for multiple rows.
Any help would be appreciated, whether I should be using a javascript solution or if there's anything I can be doing with CSS. Keeping it mind I need the heights to be consistent and for it to re-adjust on screen resize. I would prefer to use Bootstrap 3, but if a solution is available for 2 I will use that version.
<div class = "container">
<div class="row">
<div id="equalheight">
<div class="col-12 col-lg-3 col-md-3 col-sm-3 col-xs-12 demo">
<div class="info-block"><!-- BODY BOX-->
<p>one line of copy</p>
</div>
</div>
<div class="col-12 col-lg-3 col-md-3 col-sm-3 col-xs-12 demo">
<div class="info-block"><!-- BODY BOX-->
<p>lots and lots of copy lots and lots of copy lots and lots of copy lots and lots of copy</p>
</div>
</div>
<div class="col-12 col-lg-3 col-md-3 col-sm-3 col-xs-12 demo">
<div class="info-block"><!-- BODY BOX-->
<p>one line of copy</p>
</div>
</div>
<div class="col-12 col-lg-3 col-md-3 col-sm-3 col-xs-12 demo">
<div class="info-block"><!-- BODY BOX-->
<p>one line of copy</p>
</div>
</div>
</div>
</div>
Above is my html, the second content area has the large amount of copy
<script>
$('#equalheight div').equalHeights();
</script>
<script>
$(window).resize(function(){
$('#equalheight div').equalHeights();
});
$(window).resize();
</script>
Above is my Javascript, calling the before mentioned library.
Thanks for any help / advice

You can try using CSS negative margins (no jQuery needed)..
.demo{
margin-bottom: -99999px;
padding-bottom: 99999px;
background-color:#efefef;
}
#equalheight {
overflow: hidden;
}
http://bootply.com/92230
EDIT - another option
Here is another example using CSS3 flexbox spec: http://www.bootply.com/126437

Bootstrap team developped a CSS class .row-eq-height which is exactly what you need. See here for more.
Just add this class on your current row like this:
<div class="row row-eq-height">
your columns
</div>
Warning: You have to add a new div.row.row-eq-height each 12 columns

You can use this plugin. It works pretty good.

Simple JS slideshow that will work with N entries

I would like to create a simple javascript slideshow that allows a user to click 'Previous' or 'Next' and have the element slide in from the right or left depending. Content will be coming in from a CMS, so it's not 'hard-coded' persay. My markup would look like this ideally (where the most recent entry receives the 'show' class):
<span class="back">Previous slide</span>
<span class="next">Next Slide</span>
<div id="slideshow">
<div class="client show">
<p>Yada</p>
</div>
<div class="client hide">
<p>Yada</p>
</div>
<div class="client hide">
<p>Yada</p>
</div>
<div class="client hide">
<p>Yada</p>
</div>
</div><!--end slideshow-->
I need something that will automatically detect order and allow the number of .client classes to be anything. This seems very close: http://jsbin.com/ekecu but I don't want it to be based on visible links to switch, just the same absolutely positioned previous and next buttons.
Would really appreciate some help, or if you were feeling especially generous an source snippet I could use.

Shadow Box or Fancybox?