shape-image-threshold

Used with 'shape-outside', this property defines the alpha (transparency) limit that determines the shape. A threshold of 0.5 means pixels with more than 50% opacity will form part of the shape.

Quick example

.image-wrap {
  float: left;
  shape-outside: url('star.png');
  /* Only pixels with 80% opacity or more will be used for the wrap boundary */
  shape-image-threshold: 0.8;
}

Quick facts

Initial value
0.0
Inherited
No
Applies to
floats
Animation type
number

shape-image-threshold Browser Support

Widely available Since 2020 96% global usage

This feature is well established and works across many devices and browser versions. It has been available across browsers since 2020.

Safe to use without fallbacks.

37+
62+
10.1+
79+
ESC