The backdrop of an HTML5 dialog element is the dimmed background that appears when the dialog element is open. You can customize the style of the backdrop using the background-color and opacity CSS properties.
To set the background color of the backdrop, you can use the background-color property
along with the dialog::backdrop pseudo-element.
For example, to set the background color of the backdrop to dark gray, you could write:
dialog::backdrop {
background-color: rgba(0, 0, 0, 0.5);
}
To set the opacity of the backdrop, you can use the opacity property.
For example, to set an opacity of 70%, you could write:
dialog::backdrop {
opacity: 0.7;
}
Alternatively, you can use the background-color CSS property
with an opacity value to create a transparent backdrop effect. For example:
dialog::backdrop {
background-color: rgba(0, 0, 0, 0.5);
}
In conclusion, customizing the backdrop style of an HTML5 dialog element is easy with the
background-color and opacity CSS properties.
Use these properties to create a backdrop effect that fits
suitable for the design of your website or application.
