Overview of new features of CSS3: How to use CSS3 to achieve filter effects

Overview of the new features of CSS3: How to use CSS3 to achieve filter effects

Introduction:

In web design, in order to attract the user’s attention , to increase the artistic sense and beauty of the page, we can use various image filter effects to improve the visual effect of the web page. The new features in CSS3 provide us with powerful tools to achieve these filter effects. This article will introduce some common filter effects of CSS3 and provide practical examples of using these effects.

1. How to use the CSS3 filter effect

To use the CSS3 filter effect, we can achieve it by adding the relevant CSS attributes to the HTML element. The following are some commonly used CSS3 filter effects and how to use them:

1. Gaussian Blur (blur): This effect can blur the image. The usage is as follows:

   .blur {
       filter: blur(5px);
   }

   In the above code, we use the .blur class selector to select the elements to which the Gaussian blur effect needs to be applied, and use blur() Function to specify the degree of blur, in pixels.

2. Contrast: This effect can adjust the contrast of the image. The usage is as follows:

   .contrast {
       filter: contrast(200%);
   }

   In the above code, we use the .contrast class selector to select the elements that need to adjust the contrast, and use the contrast() function to Specifies the contrast value in percent.

3. Brightness: This effect can adjust the brightness of the image. The usage method is as follows:

   .brightness {
       filter: brightness(150%);
   }

   In the above code, we use the .brightness class selector to select the elements that need to adjust the brightness, and use the brightness() function to Specifies the brightness value in percent.

4. Hue-rotate: This effect can change the color of the image. The usage is as follows:

   .hue-rotate {
       filter: hue-rotate(90deg);
   }

   In the above code, we use the .hue-rotate class selector to select the elements that need to change color, and use hue-rotate() Function to specify the angle of hue rotation, in degrees.

5. Saturate: This effect can adjust the saturation of the image. The usage is as follows:

   .saturate {
       filter: saturate(200%);
   }

   In the above code, we use the .saturate class selector to select the elements that need to be adjusted in saturation, and use the saturate() function to specify the saturation value in percent.

2. Examples of using CSS3 filter effects

The following are several actual cases of using CSS3 filter effects for readers’ reference:

1. Black and white effect of the picture:

   .black-white {
       filter: grayscale(100%);
   }

2. Blurred background effect of the picture:

   .blur-background {
       filter: blur(10px);
   }

3. Projection effect of the text:

   .text-shadow {
       filter: drop-shadow(2px 2px 2px black);
   }

4. Flipping effect of the image:

   .flip-image {
       filter: scaleX(-1);
   }

Conclusion:

Through the filter effect of CSS3, we can easily add color to the web page Add various image processing effects to improve the visual effects and user experience of web pages. This article introduces some common filter effects of CSS3 and how to use them, and provides practical cases for readers' reference. I hope readers can better apply CSS3 filter effects to beautify web design through the introduction of this article.

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