Add blurry background to my dropdown menu

Hello @LucieGbt1993. You can achieve this by using the following code. Adjust the pixel value (px) to match your header background as needed:

1. Navigate to Pages > Website Tools > Custom CSS.
2. Paste the code into the CSS editor.
3. Hit Save and you’re done

.header-nav-folder-content {
  background: transparent !important; /* Sets the background to transparent */
  -webkit-backdrop-filter: blur(4px); /* Applies a blur effect for Safari browsers */
  backdrop-filter: blur(4px); /* Applies the blur effect for other modern browsers */
}

Give it a try:)