"Enhance your website design with a full-width element using Boostrap that align

Whenever my div is scrolled to, it becomes fixed. At that point, I want the div to expand to full width. I achieved this by adding width: 100% to the div. However, the issue is that I want the content of the div to align with the rest of the page content, instead of moving to the left. I need a solution without changing the current HTML structure.


Example: The div should be full width when it becomes fixed upon scrolling.

Check out the fiddle: https://jsfiddle.net/DTcHh/19335/


Example: Adding left padding helps in aligning the content correctly. But, the challenge is determining the ideal amount of padding - is there a reliable method for this?

Check out the fiddle: https://jsfiddle.net/DTcHh/19337/


CSS:

#myDiv.fixed {
  position: fixed;
  bottom: 0;
  left: 0;
  width: 100%;
}

Jquery:

$(window).scroll(function() {
  if (isScrolledIntoView($('#myDivWrapper'))) {
    if (!initSet) {
      initSet = true;
    }
    $("#myDiv").removeClass('fixed');
  } else if (initSet) {
    $("#myDiv").addClass('fixed');
  }
});

Answer №1

To enhance the structure of #myDiv, include an additional .container div and make adjustments to the padding as needed when fixing occurs.

<div id="myDivWrapper">
    <div id="myDiv">
      <div class="container">
        <p>
          This content will be fixed upon entering the view and unfixed upon exiting.
        </p>
      </div>
    </div>
  </div>


#myDiv .container {
  padding: 0;
}

#myDiv.fixed {
  position: fixed;
  bottom: 0;
  left: 0;
  width: 100%;
}

#myDiv.fixed .container {
padding: 0 15px;
}

This code could use some organization, but you should understand the concept.

JSfiddle

Answer №2

Avoid using left:0 in your code.

Click here for code example

#myElement.sticky {
  position: sticky;
  top: 0;
  width: 100%;
}

Answer №3

To implement this feature, you first need to calculate the distance between the content and the edge of the window. Then, apply this measurement as padding on the left side when necessary.

var measure = ($(window).width() - ($('#myDiv').offset().left + $('#myDiv').width()));

$(window).scroll(function() {
  if (isScrolledIntoView($('#myDivWrapper'))) {
    if (!initSet) {
      initSet = true;
    }
    $("#myDiv").removeClass('fixed').css('padding-left', 0);
  } else if (initSet) {
    $("#myDiv").addClass('fixed').css('padding-left', measure+'px');
  }
});

Check out the demonstration on Fiddle https://jsfiddle.net/DTcHh/19338/

UPDATE: If modifying the HTML structure is possible, I suggest following @Paulie_D's method. You can simply apply a class to the existing markup without the need for an additional container.

View the updated demonstration on Fiddle https://jsfiddle.net/DTcHh/19340/

<div id="myDivWrapper">
    <div id="myDiv">
      <p class="container">
        This element will be fixed once it enters the viewport and then reverts when out of view.
      </p>
    </div>
  </div>

Answer №4

If you have all your paragraphs contained within a class called container, don't forget to add this class to your fixed paragraph as well.

    $("#myDiv").removeClass('fixed');
    $("#myDiv p").removeClass('container');
  ...
    $("#myDiv").addClass('fixed');
    $("#myDiv p").addClass('container');

Additionally, make sure to specify that #myDiv should take up the full width:

#myDiv.fixed {
  position: fixed;
  bottom: 0;
  left:0;
  right:0;
}

Check out a live demo here.

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