Fuzzy Background to Enhance Your Bootstrap 5 Offcanvas Navigation Menu

Currently utilizing Bootstrap v5.2, I am endeavoring to replicate the image displayed in the link below:

Blurry Sidebar Backdrop

As per the MDN Documentation, backdrop-filter is intended for blurring the background of an element.

.offcanvas-backdrop {
    backdrop-filter: blur(10px); 
    -webkit-filter: blur(10px);
}

Despite trying the above method, it failed to produce the desired outcome, prompting me to experiment with the CSS filter instead:

<svg>
  <filter id="blur">
    <feGaussianBlur stdDeviation="10" />
  </filter>
</svg>

.offcanvas-backdrop{
    filter: blur(10px);
    -webkit-filter:blur(10px);
    filter: url($blur);
    filter: progid:DXImageTransform.Microsoft.Blur(PixelRadius='10');
}

Unfortunately, this alternative approach also yielded unsatisfactory results.

I kindly seek assistance and guidance from the community on this matter.

Answer №1

When the "offcanvas-backdrop" appears, apply a blur filter and set the opacity to 1 instead of the default 0.5. Feel free to customize the background color to your preference.

.offcanvas-backdrop.show {
  opacity: 1;
  background-color: rgba(15,23,42,.5);
  backdrop-filter: blur(8px);
}

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