Detailed explanation of CSS3 filter attribute

Recently I discovered a very powerful CSS3 attribute, which is the filter attribute. Friends who like p-pictures should know what kind of artifact this is by looking at the name. Of course, the effect of this attribute cannot be compared with that of PS, but if used well, one picture can be made into the effect of two pictures while saving a lot of space. This article mainly introduces relevant information about the powerful filter attribute in CSS3. Friends who need it can refer to it. I hope it can help everyone.

1. Definition

Filter literally means filter. The official filter attribute defines the visual effect of an element (usually ) (for example: blur and Saturation); give a chestnut:

<style>
    img{
　　　　　　/*灰度100%*/
        -webkit-filter:grayscale(100%);
    }
</style>
<img  src="/static/imghwm/default1.png" data-src="img/boke.png" class="lazy" alt="Detailed explanation of CSS3 filter attribute" >

　　

Seeing this effect, are bloggers starting to be interested in filters?

2. Syntax

filter: none | blur() | brightness() | contrast() | drop-shadow() | grayscale() | hue-rotate() | invert() | opacity() | saturate() | sepia() | url();

As you can see, the attribute has many optional values. What do they mean?

1. grayscale grayscale

2. sepia brown (a retro old photo feel)

3. saturate saturation

4. hue-rotatehue rotation

5. invert reverse color

6. opacitytransparency

7. brightness

8. contrast

9. blur

10. drop-shadow

For example:

Use sepia to adjust here

 
     <meta>
      <title>Title</title>
      <style>
          .img{

             -webkit-filter:sepia(70%);
          } 
      </style>
  
 
 <img  src="/static/imghwm/default1.png" data-src="img/boke.png" class="lazy" alt="Detailed explanation of CSS3 filter attribute" >
 <img  class="img lazy" src="/static/imghwm/default1.png" data-src="img/boke.png" alt="Detailed explanation of CSS3 filter attribute" >
 

Sample picture:

3. Example

Below, I will give an example of several values ​​​​of the filter attribute. Other interesting things need to be discovered by fellow bloggers. If you have any interesting things, you can join me. Share

(1)hue-rotate(color rotation)

Let’s see the effect in the picture. The specific effect depends on everyone’s discovery:

     <style>
          .img{
              -webkit-filter:hue-rotate(330deg);
          }
      </style>
  
  
  <img  src="/static/imghwm/default1.png" data-src="img/boke.png" class="lazy" alt="Detailed explanation of CSS3 filter attribute" >
  <img  class="img lazy" src="/static/imghwm/default1.png" data-src="img/boke.png" alt="Detailed explanation of CSS3 filter attribute" >
 

Effect picture:

(2)blur(blur)

blur (blur effect, unit px)

     <style>
          .img{
            -webkit-filter:blur(1px);
          }
      </style>
  
  <img  src="/static/imghwm/default1.png" data-src="img/boke.png" class="lazy" alt="Detailed explanation of CSS3 filter attribute" >
  <img  class="img lazy" src="/static/imghwm/default1.png" data-src="img/boke.png" alt="Detailed explanation of CSS3 filter attribute" >
 

Sample picture:

(3)invert reverse color

invert reverse color will turn the picture into a negative. It is useless to say more, look at the code:

 <style>
        .img{
            -webkit-filter:invert(100%);
        }
    </style>

<img  src="/static/imghwm/default1.png" data-src="img/boke.png" class="lazy" alt="Detailed explanation of CSS3 filter attribute" >
<img  class="img lazy" src="/static/imghwm/default1.png" data-src="img/boke.png" alt="Detailed explanation of CSS3 filter attribute" >

Example Picture:

Do you think it’s fun? Hurry up and give it a try.

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Detailed introduction to the filter attribute of CSS3

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