Clear Rows When Doing Multi-responsive Columns - B

Question

That title might not be very accurate but here is the situation:

As you can see in the HTML, The grid system goes from 4 images on xl screens to 3 on lg screens to 2 on anything less.

I am trying to get it to display properly - the proper amount of images at each screen size, that is. However, something funky is going on and can't quite figure it out using bootstraps classes.

It seems to me that I would have to add rows dynamically at each break-point.

Any suggestions?

-- UPDATE -- Just realized that col-xl-* doesn't exist. However, that does not change the situation at all. Please disregard the xl declaration.

-- UPDATE 2 -- Updated images.

-- UPDATE 3 -- I'll try to clarify my goal. For that specific image attached in my post, I would like for 3 boxes to appear per row - not all helter skelter.

When it collapses down to 2 boxes per row (xs device), I want to make sure every row has 2 boxes.

Answer 1

An .scss fix using bootstrap variables, taken from @jonas and @yog

@mixin row-first-child($col-type) {
  .col-#{$col-type}- {
    &1:nth-child(12n+1),
    &2:nth-child(6n+1),
    &3:nth-child(4n+1),
    &4:nth-child(3n+1),
    &6:nth-child(odd){
      clear: left;
    }
  }
} 

.auto-clear {
  @media (min-width: $screen-lg-min){
    @include row-first-child(lg);
  }
  @media (min-width: $screen-md-min) and (max-width: $screen-md-max){
    @include row-first-child(md);
  }
  @media (min-width: $screen-sm-min) and (max-width: $screen-sm-max){
    @include row-first-child(sm);
  }
  @media (max-width: $screen-xs-max){
    @include row-first-child(xs);
  }
}

Answer 2

Bootstrap 4 introduces hidden-*-up and hidden-*-down classes. Very handy (and elegant) utility for situations such as these.

Available classes

• The .hidden-*-up classes hide the element when the viewport is at the given breakpoint or wider. For example, .hidden-md-up hides an element on medium, large, and extra-large viewports.
• The .hidden-*-down classes hide the element when the viewport is at the given breakpoint or smaller. For example, .hidden-md-down hides an element on extra-small, small, and medium viewports.
• There are no explicit “visible”/”show” responsive utility classes; you make an element visible by simply not hiding it at that breakpoint size.
• You can combine one .hidden-*-up class with one .hidden-*-down class to show an element only on a given interval of screen sizes. For example, .hidden-sm-down.hidden-xl-up shows the element only on medium and large viewports. Using multiple .hidden-*-up classes or multiple .hidden-*-down classes is redundant and pointless.
• These classes don’t attempt to accommodate less common cases where an element’s visibility can’t be expressed as a single contiguous range of viewport breakpoint sizes; you will instead need to use custom CSS in such cases.

http://v4-alpha.getbootstrap.com/layout/responsive-utilities/

Answer 3

Adding to @Jonas and @KFunk's answer:

Potential fix for requiring the use of all col-sizes (col-xs-6 col-sm-4 col-md-4 col-lg-4).

Classes created: auto-clear-xs, auto-clear-sm, auto-clear-md and auto-clear-lg.

I've made my answer mobile-first.

Note: This still requires the columns to be the same size.

HTML

<div class="row auto-clear-xs auto-clear-lg">
    <div class="col-xs-6 col-lg-3">
        <p>Hey</p>
    </div>
</div>

SCSS

@mixin row-first-child($col-type, $clear-type) {
   .col-#{$col-type}- {
    &1:nth-child(12n+1),
    &2:nth-child(6n+1),
    &3:nth-child(4n+1),
    &4:nth-child(3n+1),
    &6:nth-child(odd){
      clear: $clear-type;
    }
  }
}

.auto-clear-xs{
  @media (min-width: $screen-xs-min){
    @include row-first-child(xs, both);
}
  @media (max-width: $screen-xs-min){
    @include row-first-child(xs, both);
  }
}

.auto-clear-sm{
  @media (min-width: $screen-sm){
    @include row-first-child(xs, none);
    @include row-first-child(sm, both);
  }
}

.auto-clear-md{
  @media (min-width: $screen-md){
    @include row-first-child(xs, none);
    @include row-first-child(sm, none);
    @include row-first-child(md, both);
  }
}

.auto-clear-lg{
  @media (min-width: $screen-lg){
    @include row-first-child(xs, none);
    @include row-first-child(sm, none);
    @include row-first-child(md, none);
    @include row-first-child(lg, both);
  }
}

CSS

@media (min-width: 480px) {
  .auto-clear-xs .col-xs-1:nth-child(12n+1), 
  .auto-clear-xs .col-xs-2:nth-child(6n+1), 
  .auto-clear-xs .col-xs-3:nth-child(4n+1), 
  .auto-clear-xs .col-xs-4:nth-child(3n+1), 
  .auto-clear-xs .col-xs-6:nth-child(odd) {
    clear: both;
  }
}
@media (max-width: 480px) {
  .auto-clear-xs .col-xs-1:nth-child(12n+1), 
  .auto-clear-xs .col-xs-2:nth-child(6n+1), 
  .auto-clear-xs .col-xs-3:nth-child(4n+1), 
  .auto-clear-xs .col-xs-4:nth-child(3n+1), 
  .auto-clear-xs .col-xs-6:nth-child(odd) {
    clear: both;
  }
}


@media (min-width: 768px) {
  .auto-clear-sm .col-xs-1:nth-child(12n+1), 
  .auto-clear-sm .col-xs-2:nth-child(6n+1), 
  .auto-clear-sm .col-xs-3:nth-child(4n+1), 
  .auto-clear-sm .col-xs-4:nth-child(3n+1), 
  .auto-clear-sm .col-xs-6:nth-child(odd) {
    clear: none;
  }
  .auto-clear-sm .col-sm-1:nth-child(12n+1), 
  .auto-clear-sm .col-sm-2:nth-child(6n+1), 
  .auto-clear-sm .col-sm-3:nth-child(4n+1), 
  .auto-clear-sm .col-sm-4:nth-child(3n+1), 
  .auto-clear-sm .col-sm-6:nth-child(odd) {
    clear: both;
  }
}

@media (min-width: 992px) {
  .auto-clear-md .col-xs-1:nth-child(12n+1), 
  .auto-clear-md .col-xs-2:nth-child(6n+1), 
  .auto-clear-md .col-xs-3:nth-child(4n+1), 
  .auto-clear-md .col-xs-4:nth-child(3n+1), 
  .auto-clear-md .col-xs-6:nth-child(odd) {
    clear: none;
  }
  .auto-clear-md .col-sm-1:nth-child(12n+1), 
  .auto-clear-md .col-sm-2:nth-child(6n+1), 
  .auto-clear-md .col-sm-3:nth-child(4n+1), 
  .auto-clear-md .col-sm-4:nth-child(3n+1), 
  .auto-clear-md .col-sm-6:nth-child(odd) {
    clear: none;
  }
  .auto-clear-md .col-md-1:nth-child(12n+1), 
  .auto-clear-md .col-md-2:nth-child(6n+1), 
  .auto-clear-md .col-md-3:nth-child(4n+1), 
  .auto-clear-md .col-md-4:nth-child(3n+1), 
  .auto-clear-md .col-md-6:nth-child(odd) {
    clear: both;
  }
}

@media (min-width: 1200px) {
  .auto-clear-lg .col-xs-1:nth-child(12n+1), 
  .auto-clear-lg .col-xs-2:nth-child(6n+1), 
  .auto-clear-lg .col-xs-3:nth-child(4n+1), 
  .auto-clear-lg .col-xs-4:nth-child(3n+1), 
  .auto-clear-lg .col-xs-6:nth-child(odd) {
    clear: none;
  }
  .auto-clear-lg .col-sm-1:nth-child(12n+1), 
  .auto-clear-lg .col-sm-2:nth-child(6n+1), 
  .auto-clear-lg .col-sm-3:nth-child(4n+1), 
  .auto-clear-lg .col-sm-4:nth-child(3n+1), 
  .auto-clear-lg .col-sm-6:nth-child(odd) {
    clear: none;
  }
  .auto-clear-lg .col-md-1:nth-child(12n+1), 
  .auto-clear-lg .col-md-2:nth-child(6n+1), 
  .auto-clear-lg .col-md-3:nth-child(4n+1), 
  .auto-clear-lg .col-md-4:nth-child(3n+1), 
  .auto-clear-lg .col-md-6:nth-child(odd) {
    clear: none;
  }
  .auto-clear-lg .col-lg-1:nth-child(12n+1), 
  .auto-clear-lg .col-lg-2:nth-child(6n+1), 
  .auto-clear-lg .col-lg-3:nth-child(4n+1), 
  .auto-clear-lg .col-lg-4:nth-child(3n+1), 
  .auto-clear-lg .col-lg-6:nth-child(odd) {
    clear: both;
  }
}

Answer 4

You can fix this very easily with css if you don't need to support IE8.

.file-row-contain.col-lg-4:nth-child(3n+1),
.file-row-contain.col-xs-6:nth-child(2n+1) { 
    clear: left; 
}

See examples

Answer 5

In case your number of col- boxes in a row is DYNAMIC and different for resolution like it is in my case than based on your col- classes do the modulus operator. Take example of below example.

<div class="row">
    <?php $elementCounter = 0; ?>
    <?php foreach ( $this->programs as $program ): ?>
        <div class="col-xs-6 col-sm-3"> DATA </div>
        <?php $elementCounter++; ?>
        <?php if( $elementCounter % 4 == 0 ): ?>
            <div class="clearfix hidden-xs"></div>
        <?php elseif( $elementCounter % 2 == 0 ): ?>
            <div class="clearfix visible-xs"></div>
        <?php endif; ?>
    <?php endforeach; ?>
</div>

col-xs-6 means it has 2 boxes in a row for extra-small devices. so for it I've added that $elementCounter % 2 == 0 condition so it is true for every second element ( AFTER ). and added clearfix with visible-xs so it shouldn't effect on desktop or other resolutions.

col-sm-3 means 4 boxes in row for small and above devices so in that case i've added $elementCounter % 4 == 0 and with that hidden-xs so that clearfix is hidden for xs devices and will be visible for small and above. This way you can modify it accordingly.

Answer 6

That is actually how it is supposed to be. The Bootstrap Grid consists of 12 columns, you're telling it to size one lg item to be 4/12 which is a third and an xs item to be 6/12 which is half the available width.

If you check the applied style you'll see that col-xs-6 is the same as setting the width of one item to 50% and 33.33% for col-lg-4.

You can read more about the grid system here

EDIT: I think I understand your problem now, without seeing your code I probably can't give you an exact solution. However the issue seems to be the variable height of your boxes, if you have them all at the same height it should give you the right amount of boxes per line.