How to Control Bootstrap Popover Width: Max-Width, Container, and JSFiddle Example

Determining Bootstrap Popover Width

In Bootstrap 3, the width of popovers is constrained by the available space within the triggering element. This can lead to popovers appearing too narrow when using wide input elements like the form-control class.

CSS Width Modification

One method to increase the popover width is through CSS:

<code class="CSS">.popover{
    max-width: 100%; /* Max Width of the popover (depending on the container!) */
}</code>

This sets the maximum width of the popover to 100% of the available space within its container.

Container Specification

If CSS width modification is not effective, it may be necessary to specify the container element for the popover:

<code class="JS">$('[data-toggle=&quot;popover&quot;]').popover({
    container: 'body'
});</code>

This instructs Bootstrap to contain the popover within the body element, rather than the triggering element. This allows the popover to extend beyond the input element.

Container Relevance

The width of a popover is determined by the following factors:

• Max Width: Defined by the max-width CSS property or by JavaScript.
• Container Width: The width of the container element specified in the JavaScript configuration.

In this case, the container width is set to 100% of the body, allowing the popover to stretch across the entire screen.

JSFiddle Demonstration

Visit the provided JSFiddle to see a working example:

http://jsfiddle.net/xp1369g4/

By adjusting the max width of the popover and specifying the container element, you can achieve the desired popover width.

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