Tips on turning off automatic positioning in Bootstrap 4.1

My dropdown list is currently quite large. Take a look at the image linked below.

Image

How can I address this issue effectively? I'm considering utilizing JavaScript to reposition the menu. Any guidance on how to disable auto-positioning?

Check out a snippet of my code:

<div class="btn-group">
                <button type="button" class="btn btn-danger dropdown-toggle"  data-toggle="dropdown" aria-haspopup="true" aria-expanded="false">
                    Action
                </button>
                <div class="dropdown-menu">
                    <a class="dropdown-item" href="#">Action</a>
                    <a class="dropdown-item" href="#">Another action</a>
                    <a class="dropdown-item" href="#">Something else here</a><a class="dropdown-item" href="#">Something else here</a><a class="dropdown-item" href="#">Something else here</a><a class="dropdown-item" href="#">Something else here</a><a class="dropdown-item" href="#">Something else here</a><a class="dropdown-item" href="#">Something else here</a><a class="dropdown-item" href="#">Something else here</a><a class="dropdown-item" href="#">Something else here</a><a class="dropdown-item" href="#">Something else here</a><a class="dropdown-item" href="#">Something else here</a>
                    <div class="dropdown-divider"></div>
                    <a class="dropdown-item" href="#">Separated link</a>
                </div>
            </div>

NOTE : I've noticed that when I scroll the page, inline css is applied to the dropdown menu which changes its properties. Any suggestions on how to resolve this?

element.style {
    left: 0px;
    position: absolute;
    transform: translate3d(16px, -258px, 0px);
    top: 0px;
    will-change: transform;
}

Appreciate your assistance

jqueryhtmlcsstwitter-bootstrapbootstrap-4

Answer №1

To deactivate this feature, you can employ a clever workaround using only CSS. By writing specific CSS rules to override the existing ones, you can effectively disable the function. For example, you can utilize the 'transform unset' property like so:

.dropdown-menu.show {
  transform: unset !important;
}

Answer №2

It seems that your Bootstrap 4 dropdown is bigger than desired. To address this issue, you can include an overflow property to the dropdown-menu

.menu-scroll {
  overflow-y: scroll;
  max-height: 200px;
}

Answer №3

To enhance the dropdown-menu, add a new class such as .menu-scrolling and apply the following custom CSS:

.menu-scrolling {
          min-height: 100px!important; /*Add your custom value*/
          max-height: 250px!important; /*Add your custom value*/
          overflow-y: auto!important;
        }

Answer №4

Include this code snippet in your JavaScript file.

Popper.Defaults.modifiers.preventOverflow = { enabled: false };

This will disable a specific JavaScript functionality.

Also, make sure to add additional parameters in the dropdown menu, such as data-flip="false" and data-boundary="window".

          <a data-toggle="dropdown" href="#" data-flip="false" data-boundary="window" aria-expanded="true"  >
                <i class="icon-menu "></i>
                <span class="change-text">Select a Category</span>
            </a>

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