What is causing my divs to behave as if I set a margin-top/margin-bottom of one and a half centimeters?

I'm currently developing an AngularJS application and I've encountered some issues with unnecessary whitespace.

<div class='user' ng-repeat='session in sessions'>
    <div class='text' ng-bind='monologues[session][0]'></div>
    <div class='timestamp' ng-bind='monologues[session][1] | to_locale'></div>
</div>

As I set a min-height for the div.user element (calculated dynamically using jQuery), I noticed that there is no height or margin specified for the div.text or div.timestamp elements. Upon inspecting these elements in Chrome's developer tools, I couldn't find any margin or min-height properties. Even after manually setting the margin and min-height values to zero for the div.user element:

   <style type="text/css">
        div.user
            {
            overflow-y: auto !important;
            white-space: pre-wrap;
            }
        div.user div
            {
            margin: 0;
            min-height: 0;
            }
        input[type='text']
            {
            width: 100%;
            }
        textarea
            {
            width: 100%;
            height: 150px;
            }
    </style>

Although the page utilizes H5BP CSS, even commenting out those includes didn't solve the issue with margins around the inner divs within div.user.

Could there be other factors contributing to this unwanted margin-like behavior?

Answer №1

The culprit behind the issue is your use of white-space: pre-wrap;

Check out http://jsfiddle.net/GVTr2/ for reference

Here's how it looks without the attribute:

http://jsfiddle.net/GVTr2/1/

I'm not sure why you have it, but that's what's causing the issue

div.user {
    overflow-y: auto !important;
}

If you insist on keeping it, consider putting all your HTML in a single line like this:

<div class='user' ng-repeat='session in sessions'><div class='text' ng-bind='monologues[session][0]'>asfafd adsfds</div><div class='timestamp' ng-bind='monologues[session][1] | to_locale'>sdf sdf as</div></div>

OR

http://jsfiddle.net/GVTr2/2/

To address the issue, try setting font-size: 0 for the parent and then assign font sizes to the children individually. However, this approach can lead to complications.

In my opinion, avoiding the use of pre-wrap entirely would be the better option

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