Tips for creating scrollable popovers in Bootstrap 4

I came across a similar question, but the solution provided didn't work for me and I'm not sure why. Why is my popover content not scrolling when it exceeds 50px? Also, a side question: I'm facing an issue with newlines within the popover when using variable 'a'. Any insights on this?

var a = "hello \n hello \nhello \nhello \nhello \nhello \nhello \nhello \nhello \nhello \nhello \nhello \nhello \nhello \nhello \n hello \nhello \nhello \nhello \nhello \nhello \nhello \nhello \nhello \nhello \nhello \nhello \nhello \nhello \nhello \nhello \nhello \nhello \nhello \nhello \nhello \nhello \nhello \nhello \nhello \nhello \nhello \nhello \nhello \nhello \nhello \nhello \nhello \nhello \nhello \n hello \nhello \nhello \nhello \nhello \nhello \nhello \nhello \n";
$(function() {
  $('[data-toggle="popover"]').popover()
});

$("#button1").attr('data-content', a);
.popover-content {
  height: 10px;
  overflow-y: auto;
}
<script src="https://cdnjs.cloudflare.com/ajax/libs/tether/1.4.4/js/tether.min.js"></script>
<script src="https://cdnjs.cloudflare.com/ajax/libs/popper.js/1.14.3/umd/popper.min.js" integrity="sha384-ZMP7rVo3mIykV+2+9J3UJ46jBk0WLaUAdn689aCwoqbBJiSnjAK/l8WvCWPIPm49" crossorigin="anonymous"></script>

<script type="text/javascript" src="https://cdnjs.cloudflare.com/ajax/libs/jquery/3.3.1/jquery.min.js"></script>
<link rel="stylesheet" href="https://stackpath.bootstrapcdn.com/bootstrap/4.1.1/css/bootstrap.min.css" integrity="sha384-WskhaSGFgHYWDcbwN70/dfYBj47jz9qbsMId/iRN3ewGhXQFZCSftd1LZCfmhktB" crossorigin="anonymous">
<script src="https://stackpath.bootstrapcdn.com/bootstrap/4.1.1/js/bootstrap.min.js" integrity="sha384-smHYKdLADwkXOn1EmN1qk/HfnUcbVRZyYmZ4qpPea6sjB/pTJ0euyQp0Mk8ck+5T" crossorigin="anonymous"></script>

<button id="button1" type="button" class="btn btn-lg btn-danger" data-toggle="popover" title="Popover title" data-content="Hello">Click to toggle popover</button>

csstwitter-bootstrapbootstrap-4

Answer №1

You should be targeting the correct class name. The appropriate class to use is tooltip-content:

.tooltip-content {
    max-height: 100px;
    overflow-y: scroll;
    text-overflow:ellipsis;
}

https://jsfiddle.net/rf8c6jw2/

Answer №2

To maintain the popover's height in relation to the content and utilize a maximum height instead, you can implement display: flex on the container.

.popover {
    display: flex;
    flex-direction: column; 
    max-height: 1000px;
    /** Avoid setting an overflow on the container as it may cause the arrow to disappear */
}
.popover-body {
    overflow: auto;
}

Keep in mind that when your page shrinks below the specified max-height, adjust it to 99%.

@media screen and (max-height: 1000px) {
    .popover {
        max-height: 99%;
    }
}

I experimented with various approaches for 5 hours before finding this effective solution.

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