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Question 27 of 49easy

How Do CSS Filters Work?

Understanding blur, brightness, contrast and other filters.

What You'll Learn

  • Filter functions
  • Multiple filters
  • Backdrop filter

Filter Functions

styles.cssCSS
.element {
  filter: blur(5px);
  filter: brightness(1.2);
  filter: contrast(1.5);
  filter: grayscale(100%);
  filter: hue-rotate(90deg);
  filter: invert(100%);
  filter: saturate(2);
  filter: sepia(100%);
  filter: drop-shadow(2px 2px 5px black);
}

Multiple Filters

styles.cssCSS
.element {
  filter: brightness(1.1) contrast(1.2) saturate(1.3);
}

Backdrop Filter

styles.cssCSS
/* Blur behind element */
.glass {
  background: rgba(255, 255, 255, 0.2);
  backdrop-filter: blur(10px);
}

/* Frosted glass effect */
.modal-overlay {
  backdrop-filter: blur(5px) brightness(0.8);
}