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Introduction to the usage of Transition animation property in CSS3

不言Original: 2018-06-28 14:29:481995browse

This article mainly introduces the usage of Transition animation attribute in CSS3 in detail and teaches you how to use Transition animation. Interested friends can refer to

W3C standard for CSS3 transition. This is This description: "CSS transition allows CSS property values to transition smoothly within a certain time interval. This effect can be triggered by mouse clicks, focus, being clicked, or any changes to the element, and smoothly animates The effect changes the property value of CSS."

The values of transition attribute include the following four:

•Transition-property: Specify which css attribute of the HTML element to transition Gradient processing, this attribute can be various standard CSS attributes such as color, width, height, etc.
•Transition-duration: Specify the duration of the attribute transition
•Transition-timing-function: Specify the speed of the gradient:
1. ease: (gradually slows down) default value, the ease function is equivalent to Besser Er curve (0.25, 0.1, 0.25, 1.0);
2, linear: (uniform speed), linear function is equivalent to Bezier curve (0.0, 0.0, 1.0, 1.0);
3, ease-in: (Accelerate), the ease-in function is equivalent to the Bezier curve (0.42, 0, 1.0, 1.0);
4. ease-out: (Decelerate), the ease-out function is equivalent to the Bezier curve (0, 0, 0.58, 1.0);
5. ease-in-out: (accelerate and then decelerate), the ease-in-out function is equivalent to the Bezier curve (0.42, 0, 0.58, 1.0);
6 , cubic-bezier: (This value allows you to customize a time curve), a specific cubic-bezier curve. The four values (x1, y1, x2, y2) are specific to points P1 and P2 on the curve. All values must be within the range [0, 1], otherwise they will be invalid.
•Transition-delay: Specify the delay time, that is, how long it takes to start the transition process.

Browser Compatibility

Internet Explorer 9 and earlier versions do not support the transition attribute.

Internet Explorer 10, Firefox, Opera and Chrome support the transition attribute. Chrome 25 and earlier and Safari require the prefix -webkit-.

The following is an example to illustrate the usage of transition

<!DOCTYPE html>
<html lang="en">
<head>
    <meta charset="UTF-8">
    <title>transition演示1</title>
    <style type="text/css">
        .animated_p {   
            margin: 100px auto;   
            width:100px;   
            height:60px;   
            background:#92B901;   
            /*简写属性*/   
            -webkit-transition:-webkit-transform 1s,opacity 1s,background 1s,width 1s,height 1s,font-size 1s; /* Safari */   
            /*每个属性分开写*/   
            transition-property:width,height,transform,background,opacity;   
            transition-duration:1s,1s,1s,1s,1s,1s;   
            -webkit-border-radius:5px;   
            border-radius:5px;   
            opacity:0.4;   
        }   
        .animated_p:hover {   
            -moz-transform: rotate(360deg);   
            -webkit-transform: rotate(360deg);   
            -o-transform: rotate(360deg);   
            transform: rotate(360deg);   
            opacity:1;   
            background:#1ec7e6;   
            width:200px;   
            height:120px;   
        }   
    </style>
</head>
<body>
<p class="animated_p"></p>
</body>
</html>

In the above code, when the mouse moves to p, the CSS attributes: width, height, transform, background, opacity Gradient transition effects occur. In the end, the css style becomes the style defined in .animated_p. The transition process is roughly as follows:

Give me another online example of Chang'e flying to the moon. The requirement is: when the mouse When moving to the picture, Chang'e appears, and when moving away, Chang'e disappears

<!DOCTYPE html>
<html>
<head>
    <meta charset="utf-8">
    <title>transition演示2</title>
    <style type="text/css">
        body{   
          color: #fff;   
          background:#000;   
        }   
        .change{   
          display:block;   
          width:400px;   
          height:400px;   
          background:url(http://p3.qhimg.com/t0134c65e59012a1257.png) no-repeat center;   
          background-size:cover;   
          border:1em solid rgba(255,255,255,.8);   
          margin:50px auto;   
        }   
        .change img{   
          display:block;   
          width:300px;   
          height:284px;   
          opacity:0;   
          -webkit-transform:translate(-100px,-100px);   
          transform:translate(-100px,-100px);   
          -webkit-transition:opacity 1s ease-in-out 0.5s,-webkit-transform 1s ease-in-out;   
          transition: opacity 1s ease-in-out 0.5s,transform 1s ease-in-out;   
        }   
        .change:hover img{   
          -webkit-transform:translate(0px,0px);   
          transform:translate(0px,0px);   
          opacity:1;   
        }   
    </style>
</head>
<body>
    <a href="http://image.haosou.com/i?q=%E5%AB%A6%E5%A8%A5png&src=tab_www" class="change " target="_blank">
        <img src="http://p4.qhimg.com/t0160e6a92121691e22.png" alt="" />
    </a>
</body>
</html>

In order to make Chang'e have the effect of floating in and out, the transform attribute is set, and the transition effect is added with the opacity attribute. The effect can be achieved:

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