The backdrop-filter Property

The backdrop-filter property allows applying filters (blur, contrast changes, color effects) to the area behind an element. This creates a "glass" or "frosted glass" effect.

Syntax

cssselector {
  backdrop-filter: none | <filter> [<filter>]*;
}

Values

Multiple filters can be combined by listing them with spaces in between.

Example . Simple blur

Basic background blur effect:

html<div class="blur-example">
  <div class="blur-box">
    Backdrop blur effect
  </div>
</div>

css.blur-example {
  background: linear-gradient(135deg, #667eea, #764ba2);
  padding: 40px;
  height: 200px;
}

.blur-box {
  backdrop-filter: blur(6px);
  background-color: rgba(255, 255, 255, 0.2);
  border-radius: 8px;
  padding: 20px;
  width: 80%;
  margin: 0 auto;
  text-align: center;
  color: white;
  font-size: 22px;
}

Результат:

Example . Warm light filter

Warm lighting effect with increased brightness:

html<div class="warm-light-bg">
  <div class="warm-light">
    Warm lighting effect
  </div>
</div>

css.warm-light-bg {
  background: url('bg.png');
  background-size: cover;
  padding: 50px;
  height: 250px;
}

.warm-light {
  backdrop-filter: brightness(1.2) hue-rotate(20deg);
  background-color: rgba(255, 235, 205, 0.3);
  padding: 25px;
  width: 70%;
  margin: 20px auto;
  text-align: center;
  color: #333;
  font-size: 24px;
}

Результат:

Example . Blur with gradient mask

Combination of blur and semi-transparent gradient:

html<div class="gradient-mask">
  <div class="mask-content">
    Gradient mask effect
  </div>
</div>

css.gradient-mask {
  background: url('bg.png') center/cover;
  padding: 50px;
  height: 300px;
}

.mask-content {
  backdrop-filter: blur(10px);
  background: linear-gradient(to right, rgba(255,255,255,0.3), rgba(255,255,255,0));
  padding: 30px;
  width: 80%;
  margin: 0 auto;
}

Результат:

Example . Old film effect

Combination of sepia and grain:

html<div class="old-film">
  <div class="film-effect">
    Old film effect
  </div>
</div>

css.old-film {
  background: url('bg.png') center/cover;
  padding: 40px;
  height: 250px;
}

.film-effect {
  backdrop-filter: sepia(80%) contrast(110%) brightness(90%);
  background-color: rgba(0,0,0,0.1);
  padding: 25px;
  width: 70%;
  margin: 20px auto;
}

Результат:

Example . Cool blue filter

Cool lighting effect:

html<div class="cold-bg">
  <div class="cold-effect">
    Cool blue filter
  </div>
</div>

css.cold-bg {
  background: url('bg.png') center/cover;
  padding: 50px;
  height: 300px;
}

.cold-effect {
  backdrop-filter: hue-rotate(180deg) brightness(85%);
  background-color: rgba(200,230,255,0.2);
  padding: 30px;
  width: 75%;
  margin: 0 auto;
}

Результат:

Example . High contrast

Increased contrast effect:

html<div class="contrast-bg">
  <div class="contrast-effect">
    High contrast
  </div>
</div>

css.contrast-bg {
  background: url('bg.png') center/cover;
  padding: 40px;
  height: 250px;
}

.contrast-effect {
  backdrop-filter: contrast(200%) brightness(90%);
  background-color: rgba(0,0,0,0.1);
  padding: 25px;
  width: 70%;
  margin: 20px auto;
}

Результат:

Example . Watercolor effect

Soft blur with increased saturation:

html<div class="watercolor-bg">
  <div class="watercolor-effect">
    Watercolor effect
  </div>
</div>

css.watercolor-bg {
  background: url('bg.png') center/cover;
  padding: 50px;
  height: 300px;
}

.watercolor-effect {
  backdrop-filter: blur(12px) saturate(200%);
  background-color: rgba(255,255,255,0.15);
  padding: 30px;
  width: 80%;
  margin: 0 auto;
}

Результат:

Example . Background shadow

Shadow effect on background image:

html<div class="shadow-bg">
  <div class="shadow-effect">
    Drop shadow effect
  </div>
</div>

css.shadow-bg {
  background: url('bg.png') center/cover;
  padding: 40px;
  height: 250px;
}

.shadow-effect {
  backdrop-filter: drop-shadow(4px 4px 10px rgba(0,0,0,0.5));
  background-color: rgba(255,255,255,0.2);
  padding: 25px;
  width: 70%;
  margin: 20px auto;
}

Результат:

Example . Full inversion

Complete color inversion of the background:

html<div class="invert-bg">
  <div class="invert-effect">
    Full inversion
  </div>
</div>

css.invert-bg {
  background: url('bg.png') center/cover;
  padding: 50px;
  height: 300px;
}

.invert-effect {
  backdrop-filter: invert(100%);
  background-color: rgba(0,0,0,0.1);
  padding: 30px;
  width: 80%;
  margin: 0 auto;
}

Результат:

Example . Darkening effect

Background darkening while maintaining text readability:

html<div class="darken-bg">
  <div class="darken-effect">
    Darkened background
  </div>
</div>

css.darken-bg {
  background: url('bg.png') center/cover;
  padding: 50px;
  height: 300px;
}

.darken-effect {
  backdrop-filter: brightness(40%);
  background-color: rgba(0,0,0,0.3);
  color: white;
  padding: 30px;
  width: 80%;
  margin: 0 auto;
}

Результат:

Example . Grayscale effect

Complete background desaturation:

html<div class="grayscale-bg">
  <div class="grayscale-effect">
    Grayscale filter
  </div>
</div>

css.grayscale-bg {
  background: url('bg.png') center/cover;
  padding: 50px;
  height: 300px;
}

.grayscale-effect {
  backdrop-filter: grayscale(100%);
  background-color: rgba(255,255,255,0.2);
  padding: 30px;
  width: 80%;
  margin: 0 auto;
}

Результат:

Example . High saturation effect

Enhanced background colors:

html<div class="saturate-bg">
  <div class="saturate-effect">
    Super saturated colors
  </div>
</div>

css.saturate-bg {
  background: url('bg.png') center/cover;
  padding: 50px;
  height: 300px;
}

.saturate-effect {
  backdrop-filter: saturate(300%);
  background-color: rgba(255,255,255,0.1);
  padding: 30px;
  width: 80%;
  margin: 0 auto;
}

Результат:

Example . Combined artistic effect

Combination of multiple filters for artistic effect:

html<div class="artistic-bg">
  <div class="artistic-effect">
    Artistic combination
  </div>
</div>

css.artistic-bg {
  background: url('bg.png') center/cover;
  padding: 50px;
  height: 300px;
}

.artistic-effect {
  backdrop-filter: blur(3px) hue-rotate(90deg) saturate(150%) contrast(120%);
  background-color: rgba(255,255,255,0.15);
  padding: 30px;
  width: 80%;
  margin: 0 auto;
  color: white;
  text-shadow: 0 0 5px black;
}

Результат:

Example . Transparency effect

Background transparency adjustment:

html<div class="opacity-bg">
  <div class="opacity-effect">
    Opacity control
  </div>
</div>

css.opacity-bg {
  background: url('bg.png') center/cover;
  padding: 50px;
  height: 300px;
}

.opacity-effect {
  backdrop-filter: opacity(50%);
  background-color: rgba(0,0,0,0.3);
  color: white;
  padding: 30px;
  width: 80%;
  margin: 0 auto;
}

Результат:

Browser support

The property is supported in most modern browsers but may require the -webkit- prefix for full cross-browser compatibility.

See also