I have a few random blocks. Whenever a block falls in the new row, I am making it look different. When the user clicks on a button, I hide few blocks by display:none
, and the problem occurs. The nth-child
selector also counts hidden elements.
Is there way to ignore those specific blocks, so that again every row has a different style? This is an example of a similar scenario.
$('.hide-others').click(function () { $('.css--all-photo').toggleClass('hidden'); })
.board-item--inner { height:200px; background:tomato; text-align:center; color:#fff; font-size:33px; margin-bottom:15px; border:2px solid tomato; } @media (min-width:768px) and (max-width:991px) { .board-item:nth-child(2n+1) .board-item--inner { border:2px solid #000; background:yellow; color:#000; } } @media (min-width:992px) and (max-width:1199px) { .board-item:nth-child(3n+1) .board-item--inner { border:2px solid #000; background:yellow; color:#000; } } @media (min-width:1200px) { .board-item:nth-child(4n+1) .board-item--inner { border:2px solid #000; background:yellow; color:#000; } }
<link href="https://maxcdn.bootstrapcdn.com/bootstrap/3.3.5/css/bootstrap.min.css" rel="stylesheet"/> <script src="https://ajax.googleapis.com/ajax/libs/jquery/1.11.1/jquery.min.js"></script> <div class="container"> <div class="form-group"> <button class="btn btn-info hide-others" type="button">Hide others</button> </div> <div class="row"> <div class="col-xs-12 col-sm-6 col-md-4 col-lg-3 board-item photos-board-item"> <div class="board-item--inner">1</div> </div> <div class="col-xs-12 col-sm-6 col-md-4 col-lg-3 board-item photos-board-item"> <div class="board-item--inner">2</div> </div> <div class="col-xs-12 col-sm-6 col-md-4 col-lg-3 board-item photos-board-item css--all-photo"> <div class="board-item--inner">3</div> </div> <div class="col-xs-12 col-sm-6 col-md-4 col-lg-3 board-item photos-board-item"> <div class="board-item--inner">4</div> </div> <div class="col-xs-12 col-sm-6 col-md-4 col-lg-3 board-item photos-board-item"> <div class="board-item--inner">5</div> </div> <div class="col-xs-12 col-sm-6 col-md-4 col-lg-3 board-item photos-board-item css--all-photo"> <div class="board-item--inner">6</div> </div> <div class="col-xs-12 col-sm-6 col-md-4 col-lg-3 board-item photos-board-item"> <div class="board-item--inner">7</div> </div> <div class="col-xs-12 col-sm-6 col-md-4 col-lg-3 board-item photos-board-item css--all-photo"> <div class="board-item--inner">8</div> </div> <div class="col-xs-12 col-sm-6 col-md-4 col-lg-3 board-item photos-board-item"> <div class="board-item--inner">9</div> </div> <div class="col-xs-12 col-sm-6 col-md-4 col-lg-3 board-item photos-board-item"> <div class="board-item--inner">0</div> </div> <div class="col-xs-12 col-sm-6 col-md-4 col-lg-3 board-item photos-board-item"> <div class="board-item--inner">10</div> </div> </div> <div>
Simply go through the snippet or EXTERNAL FIDDLE, and you'll get my question.
I am specifically looking for a pure CSS solution. Please provide a fiddle for your answers! And I cannot remove those blocks permanently, my user has the option to filter files on button click, that is why hidden and shown scenario.
In order for the nth-child rules you've declared to work after a user clicks to hide divs, you need to remove the hidden divs from the DOM, so they no longer exist as siblings. In your question you request a CSS-only solution.
As a general rule, if you want to select an interval of a selector regardless of the type of element it is, use nth-child . However, if you want to select a specific type only and apply an interval selection from there, use nth-of-type .
To get the nth-child of an element using the querySelector method, pass the :nth-child() pseudo-class as a parameter to the method, e.g. document. querySelector('#parent :nth-child(1)') . The nth-child pseudo-class returns the element that matches the specified position.
jQuery selector is described in the Selectors/nthChild docs, and the above can be accomplished with $("li. mybutton:nth-child(2)"). hide() .
When the user clicks on a button, I hide few blocks by
display:none
, and the problem occurs. Thenth-child
selector also counts hidden elements.Is there way to ignore those specific blocks, so that again every row has different style?
The problem is that the nth-child()
selector looks at all siblings under the same parent regardless of styling. It doesn't matter that you've applied display: none
because CSS doesn't remove the element from the DOM, and therefore it's still a sibling.
From the spec:
6.6.5.2.
:nth-child()
pseudo-classThe
:nth-child(an+b)
pseudo-class notation represents an element that has an+b-1 siblings before it in the document tree, for any positive integer or zero value of n, and has a parent element. (emphasis mine)
In order for the nth-child
rules you've declared to work after a user clicks to hide divs, you need to remove the hidden divs from the DOM, so they no longer exist as siblings.
In your question you request a CSS-only solution. But in your comments you say that the HTML is open for changes. You also use a bit of jQuery to hide elements.
With one small line of code added to your jQuery the problem can be solved:
$('.hidden').remove();
The .remove()
method takes elements (and its descendants) out of the DOM. In this case it removes all elements with a class hidden
.
CORRECTION
The problem with remove()
is that elements taken from the DOM with this method can't be restored, and this breaks the toggle function.
Fortunately, jQuery offers an alternative: detach()
.
The
.detach()
method is the same as.remove()
, except that.detach()
keeps all jQuery data associated with the removed elements. This method is useful when removed elements are to be reinserted into the DOM at a later time.
So if we replace the original code...
$('.hide-others').click(function () { $('.css--all-photo').toggleClass('hidden'); })
...with this code...
var divs; $('.photos-board-item').each(function(i){ $(this).data('initial-index', i); }); $('.hide-others').on('click', function () { if(divs) { $(divs).appendTo('.row').each(function(){ var oldIndex = $(this).data('initial-index'); $('.photos-board-item').eq(oldIndex).before(this); }); divs = null; } else { divs = $('.css--all-photo').detach(); } });
... the grid works as intended. (code credit: @JosephMarikle)
DEMO
Now, regardless of which divs or how many are hidden, they can be toggled on and off without disrupting the visual design because the nth-child
selector is counting only "visible" siblings. No changes to the CSS. No changes to the HTML.
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