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Example tutorial of css3 carousel

零下一度

Jul 16, 2017 pm 04:27 PM

csscss3

This article mainly introduces the css3 carousel. The editor thinks it is quite good. Now I will share it with you and give you a reference. Let’s follow the editor to take a look

1. Perspective

The perspective attribute includes two attributes: none and the length value with unit.

The default value of the perspective attribute is none, which means that the 3D object looks flat from infinite angles. Another value, , accepts a value with length units greater than 0. And its unit cannot be a percentage value. The larger the value, the farther the angle appears, creating a rather low intensity and very little change in 3D space. Conversely, the smaller this value, the closer the angle appears, creating a strong angle and a large 3D variation. To put it simply: when perspective sets length, the smaller it is, the more obvious the 3D effect is and the closer your eyes are to the 3D object, and vice versa.

2. transform: translateZ(length)

Assuming that perspective: 300px is set, the smaller the value of translateZ is set, the smaller the size of the sub-element will be. When the value is set When it is close to 300px, it seems that the element is in front of you. When it exceeds 300px, it reaches the back of your field of view and the element is invisible.

The core of the above example:

1. First, all the image containers have position:absolute, superimpose them together, and then set rotateY to 40*i respectively, i= 0, 1, 2 ...9; All pictures will intersect into a flower-like shape

2. Then set translateZ for the container of each picture. All pictures will move outward from the corresponding angle and expand into a large circle, that is The effect of the above picture.

html:

<!DOCTYPE html>  
<html>  
<head>  
    <title></title>  
    <meta charset="utf-8"/>  
   <link href="css/reset.css" rel="stylesheet" type="text/css"/>  
    <script type="text/javascript" src="../../jquery-1.8.3.js"></script>  
  
    <script type="text/javascript">  
        // alert( 64 / Math.tan(20 / 180 * Math.PI));  
        var transform = function (element, value, key)  
        {  
            key = key || "Transform";  
            ["Moz", "O", "Ms", "Webkit", ""].forEach(function (prefix)  
            {  
                element.style[prefix + key] = value;  
            });  
  
            return element;  
        }  
  
  
        $(function ()  
        {  
            var deg = -40 , i = 1;  
            $("#container").click(function ()  
            {  
                transform($(this)[0], "rotateY(" + (deg * i++) + "deg)")  
            });  
        });  
  
    </script>  
  
     
  
</head>  
<body>  
<p id="stage">  
    <ul id="container">  
        <li>  
            <img  src="/static/imghwm/default1.png"  data-src="img/1.jpg"  class="lazy"  / alt="Example tutorial of css3 carousel" >  
            <span>Do one thing at a time, and do well..</span>  
        </li>  
        <li>  
            <img  src="/static/imghwm/default1.png"  data-src="img/2.jpg"  class="lazy"  / alt="Example tutorial of css3 carousel" > <span>Do one thing at a time, and do well..</span>  
        </li>  
        <li>  
            <img  src="/static/imghwm/default1.png"  data-src="img/3.jpg"  class="lazy"  / alt="Example tutorial of css3 carousel" > <span>Keep on going never give up.</span>  
        </li>  
        <li>  
            <img  src="/static/imghwm/default1.png"  data-src="img/4.jpg"  class="lazy"  / alt="Example tutorial of css3 carousel" > <span>Whatever is worth doing is worth doing well.</span>  
        </li>  
        <li>  
            <img  src="/static/imghwm/default1.png"  data-src="img/5.jpg"  class="lazy"  / alt="Example tutorial of css3 carousel" > <span>Believe in yourself.</span>  
        </li>  
        <li>  
            <img  src="/static/imghwm/default1.png"  data-src="img/6.jpg"  class="lazy"  / alt="Example tutorial of css3 carousel" > <span>Action speak louder than words.</span>  
        </li>  
        <li>  
            <img  src="/static/imghwm/default1.png"  data-src="img/7.jpg"  class="lazy"  / alt="Example tutorial of css3 carousel" > <span>Never put off what you can do today until tomorrow.</span>  
        </li>  
        <li>  
            <img  src="/static/imghwm/default1.png"  data-src="img/8.jpg"  class="lazy"  / alt="Example tutorial of css3 carousel" > <span>Jack of all trades and master of none.</span>  
        </li>  
        <li>  
            <img  src="/static/imghwm/default1.png"  data-src="img/9.jpg"  class="lazy"  / alt="Example tutorial of css3 carousel" > <span>Judge not from appearances.</span>  
        </li>  
    </ul>  
</p>  
</body>  
</html>

CSS:

li  
{  
    width: 128px;  
    box-shadow: 0 1px 3px rgba(0, 0, 0, .5);  
    position: absolute;  
    bottom: 0;  
}  
  
li img  
{  
    width: 128px;  
    box-shadow: 0 1px 3px rgba(0, 0, 0, .5);  
    vertical-align: middle;  
}  
  
li span  
{  
    display: block;  
    width: 128px;  
    text-align: center;  
    color: #333;  
    font-size: 8px;  
}  
  
#stage  
{  
  
    width: 900px;  
    min-height: 100px;  
    margin-left: auto;  
    margin-right: auto;  
    padding: 100px 50px;  
    -webkit-perspective: 1200px;  
    position: relative;  
}  
  
#container  
{  
    background: url("img/xawl.jpg") no-repeat 0 0;  
    margin-top: 200px;  
    width: 128px;  
    box-shadow: 0 1px 3px rgba(0, 0, 0, 5);  
    height: 100px;  
    margin-left: -64px;  
    -webkit-transition: -webkit-transform 1s;  
    transition: transform 1s;  
    -webkit-transform-style: preserve-3d;  
    position: absolute;  
    left: 50%;  
}  
  
li:nth-child(0)  
{  
    -webkit-transform: rotateY(0deg) translateZ(300px);  
}  
  
li:nth-child(1)  
{  
    -webkit-transform: rotateY(40deg) translateZ(300px);  
}  
  
li:nth-child(2)  
{  
    -webkit-transform: rotateY(80deg) translateZ(300px);  
}  
  
li:nth-child(3)  
{  
    -webkit-transform: rotateY(120deg) translateZ(300px);  
}  
  
li:nth-child(4)  
{  
    -webkit-transform: rotateY(160deg) translateZ(300px);  
}  
  
li:nth-child(5)  
{  
    -webkit-transform: rotateY(200deg) translateZ(300px);  
}  
  
li:nth-child(6)  
{  
    -webkit-transform: rotateY(240deg) translateZ(300px);  
}  
  
li:nth-child(7)  
{  
    -webkit-transform: rotateY(280deg) translateZ(300px);  
}  
  
li:nth-child(8)  
{  
    -webkit-transform: rotateY(320deg) translateZ(300px);  
}  
  
li:nth-child(9)  
{  
    -webkit-transform: rotateY(360deg) translateZ(300px);  
}

p#stage as the stage, set perspective, set rotateY for each li, and translateZ; then we will p#container set -webkit-transform-style: preserve-3d;

transform-style: flat | preserve-3d

where flat The value is the default value, which means that all child elements are rendered on the 2D plane. preserve-3d means that all child elements are rendered in 3D space. If the transform-style value is set to preserve-3d for an element, it means that the flattening operation is not performed and all its child elements are located in 3D space. Under normal circumstances, this attribute is used for the execution element of 3D animation effects, that is, it is to apply 3D animation effects, so its child elements should all be in 3D space.

One thing to note: In this example, the animation effect is actually due to mouse click, p#Container is changing rotateY inappropriately, all picture elements are in p#container, and have been displayed as a carousel Effect, what you need to do now is to rotate the Trojan, so you only need to change the rotateY 40 angle of p#container each time.

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