Detailed explanation of CSS3 filter property-CSS Tutorial-php.cn

Detailed explanation of CSS3 filter property

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Release： 2018-03-21 17:02:08

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This time I will bring you the CSS3 filterpropertydetailed explanation, what are the precautionsfor using the CSS3 filter property, the following is a practical case , let’s take a look.

Recently, I discovered a very powerful CSS3 attribute in the process of building a website, which is the filter attribute. Friends who like p-pictures should know what this artifact 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.

1. Definition　

Filter literally means filter. The official filter attribute defines an element (usually < img>) visual effects (for example: blur and saturation); for example:

<style>
    img{
　　　　　　/*灰度100%*/
        -webkit-filter:grayscale(100%);
    }
</style>
<img src="img/boke.png" alt="">

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##See this effect, Are all bloggers starting to be interested in filters?

2. Syntax

filter: none | blur() | b

As you can see, there are many attributes Select value, what do they mean?

grayscale grayscale
sepia brown (a retro old photo feel)
saturate saturation
hue-rotatehue rotation
invert reverse color
opacitytransparency
brightness
contrast
blur
drop-shadow

For example:

Use sepia to adjust here

 <head>
     <meta charset="UTF-8">
      <title>Title</title>
      <style>
          .img{
             -webkit-filter:sepia(70%);
          } 
      </style>
  </head>
 <body>
 <img src="img/boke.png" alt="">
 <img class="img" src="img/boke.png" alt="">
 </body>

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Example

Picture :

3. Example

Below, some of the filter attributes It is worth making an example. Other interesting things need to be discovered by fellow bloggers. If you have any interesting things, you can share them with me.

(1)hue-rotate(color rotation)

Look at the picture for the effect. The specific effect depends on everyone’s discovery:

     <style>
          .img{
              -webkit-filter:hue-rotate(330deg);
          }
      </style>
  </head>
  <body>
  <img src="img/boke.png" alt="">
  <img class="img" src="img/boke.png" alt="">
 </body>

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Effect picture:

(2)blur( Blur)

blur (blur effect, unit px)

     <style>
          .img{
            -webkit-filter:blur(1px);
          }
      </style>
  <body>
  <img src="img/boke.png" alt="">
  <img class="img" src="img/boke.png" alt="">
 </body>

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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>
<body>
<img src="img/boke.png" alt="">
<img class="img" src="img/boke.png" alt="">
</body>

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Sample picture:

I believe you have mastered the method after reading the case in this article. For more exciting information, please pay attention to other related articles on the php Chinese website!