CSS Summary Notes: Examples of Transformations, Transitions, and Animations-CSS Tutorial-php.cn

This article mainly introduces relevant information about examples of deformation, transition and animation of CSS summary notes. It has certain reference value. Friends in need can refer to it. I hope it will be helpful to you.

1. Transition transition

Transition property usage: transition :ransition-property transition-duration transition -timing-function transition-delay

can be specified together or separately

transition-property: is to be transitioned Properties (such as width, height), all are changed.

Transition-duration: the time spent, the unit is s or ms

transition-timing-function: specifies the animation type (motion area curve), the motion curve has the following types

ease=>Gradually slow down (default value) linear=>Constant speed ease-in=>Accelerate ease-out=>Decelerate ease-in-out=>Accelerate first and then decelerate

transition-delay delay time, unit is s or ms

<!DOCTYPE html>
<html lang="en">

<head>
    <meta charset="UTF-8">
    <meta name="viewport" content="width=device-width, initial-scale=1.0">
    <meta http-equiv="X-UA-Compatible" content="ie=edge">
    <title>Document</title>
    <style>
        
        p {
            width: 100px;
            height: 200px;
            background-color: aqua;
            transition: width 2s ease-in-out 0.5s;
        }
        
        p:hover {
            width: 500px;
        }
    </style>
</head>

<body>
    <p></p>
</body>

</html>

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The results are as follows. When the mouse goes up, the change is no longer completed instantaneously, but the transition is completed.

2. Transformationtransform

(1), 2D deformation

(a) Move translate(x,y)

Movement can specify the pixel value or the percentage. Note: The specified percentage is the percentage of its own size, so it can be used Center alignment when setting the box positioning (set left: 50% and then move it by -50%).

<!DOCTYPE html>
<html lang="en">

<head>
    <meta charset="UTF-8">
    <meta name="viewport" content="width=, initial-scale=1.0">
    <meta http-equiv="X-UA-Compatible" content="ie=edge">
    <title>Document</title>
    <style>
        p {
            width: 100px;
            height: 100px;
            background-color: aqua;
            transition: all 2s;
        }
        
        p:active {
            transform: translate(200px, 200px);
        }
    </style>
</head>

<body>
    <p></p>
</body>

</html>

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The box moved after clicking. The code used to center the positioned box is as follows

<!DOCTYPE html>
<html lang="en">

<head>
    <meta charset="UTF-8">
    <meta name="viewport" content="width=device-width, initial-scale=1.0">
    <meta http-equiv="X-UA-Compatible" content="ie=edge">
    <title>Document</title>
    <style>
        .fa {
            width: 300px;
            height: 300px;
            background-color: aqua;
            transition: all 0.5s;
            position: relative;
        }
        
        .son {
            background-color: red;
            position: absolute;
            left: 50%;
            top: 50%;
            width: 100px;
            height: 100px;
            transform: translate(-50%, -50%);
        }

    </style>
</head>

<body>
    <p class="fa">
        <p class="son"></p>
    </p>

</body>

</html>

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The result is

##(b) Scale scale(x, y)

x, y is set greater than 1 to enlarge, and less than 1 is reduced.

<!DOCTYPE html>
<html lang="en">

<head>
    <meta charset="UTF-8">
    <meta name="viewport" content="width=device-width, initial-scale=1.0">
    <meta http-equiv="X-UA-Compatible" content="ie=edge">
    <title>Document</title>
    <style>
        p {
            width: 100px;
            height: 100px;
            background-color: aqua;
            margin: 200px auto;
            transition: all 2s;
        }
        
        p:hover {
            transform: scale(0.5, 2);
        }
    </style>
</head>

<body>
    <p>

    </p>
</body>

</html>

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x specifies the degree value, positive number is clockwise rotation, negative number is counterclockwise rotation.

Rotation can use

transform-origin to specify the rotation center point. Transform-origin can also specify specific pixel values for left top right bottom.

<!DOCTYPE html>
<html lang="en">

<head>
    <meta charset="UTF-8">
    <meta name="viewport" content="width=device-width, initial-scale=1.0">
    <meta http-equiv="X-UA-Compatible" content="ie=edge">
    <title>Document</title>
    <style>
        p {
            width: 200px;
            height: 100px;
            background-color: aqua;
            margin: 200px auto;
            transition: all 2s;
            transform-origin: bottom left;
        }
        
        p:hover {
            transform: rotate(120deg);
        }
    </style>
</head>

<body>
    <p></p>
</body>

</html>

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(d) Inclination skew (x deg, y deg)

x,y respectively specify the angle of inclination in the x and y directions, you can is a negative number. The y value defaults to 0 if not written.

<!DOCTYPE html>
<html lang="en">

<head>
    <meta charset="UTF-8">
    <meta name="viewport" content="width=device-width, initial-scale=1.0">
    <meta http-equiv="X-UA-Compatible" content="ie=edge">
    <title>Document</title>
    <style>
        p {
            width: 100px;
            height: 100px;
            background-color: aqua;
            border: 1px solid red;
            transition: all 1s;
            margin: 200px auto;
        }
        
        p:hover {
            transform: skew(30deg, 20deg);
        }
    </style>
</head>

<body>
    <p></p>
</body>

</html>

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(2) 3D deformation

(a) Rotate (rotateX,rotateY,rotateZ)

3D rotation is similar to 2D, except that one is based on two-dimensional coordinates and the other is based on three-dimensional coordinates. The three values can be specified simultaneously or individually.

<!DOCTYPE html>
<html lang="en">

<head>
    <meta charset="UTF-8">
    <meta name="viewport" content="width=device-width, initial-scale=1.0">
    <meta http-equiv="X-UA-Compatible" content="ie=edge">
    <title>Document</title>
    <style>
        p {
            width: 200px;
            height: 100px;
            background-color: aqua;
            margin: 200px auto;
            transition: all 2s;
            transform-origin: bottom left;
        }
        
        p:hover {
            transform: rotateX(120deg);
            /* transform: rotateY(120deg); */
            /* transform: rotateZ(120deg); */
        }
    </style>
</head>

<body>
    <p></p>
</body>

</html>

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(b) Move (translateX, translateY, translateZ)

3D movement is consistent with 2d movement for movement in the xy direction. Only the movement in the z direction is different. Movement in the Z direction means that the distance becomes farther and the distance becomes closer in real life. Therefore, the results displayed on the web page become larger when the object is closer, and smaller when the object is farther away.

To make the Z-line movement take effect, you must first set the perspective (the distance between the eyes and the screen);

<!DOCTYPE html>
<html lang="en">

<head>
    <meta charset="UTF-8">
    <meta name="viewport" content="width=device-width, initial-scale=1.0">
    <meta http-equiv="X-UA-Compatible" content="ie=edge">
    <title>Document</title>
    <style>
        body {
            perspective: 1000px;
            /* 数值越小说明眼睛离的越近 */
        }
        
        p {
            width: 200px;
            height: 200px;
            background-color: aqua;
            transition: all 0.5s;
            margin: 200px auto;
        }
        
        p:hover {
            transform: translate3d(0, 0, 200px);
        }
    </style>
</head>

<body>
    <p>

    </p>
</body>

</html>

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##3. Animation animation (1),

animation:

animation- name || animation- duration|| animation- timing-function || animation- delay || animation- iteration-count|| animation- direction|| animation- fill-mode; animation-name: animation name (animation defined by yourself using @keyframes)

animation-duration: duration

animation-timing-function: motion curve, similar to the motion curve of transition.

animation-delay: delay time

animation-iteration-count: number of loops (infinite is an infinite loop)

animation-direction: whether to reverse (whether the animation is by The ending is placed upside down)

animation-fill-mode：设置在动画播放之外的状态（结束时的状态）none | forwards（设为结束时的状态）| backwards(设为开始时的状态)|both（设为开始或结束时的状态）

animation-play-state：设置动画状态 running 开始|paused 暂停

（2）、@keyframes 自定义动画

格式如下

@keyframes 动画名称 {
from{ 开始} 0%
to{ 结束 } 100%
}

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可以用 from...to 来指定动画过程，也可以用0%~100%指定动画过程。

<!DOCTYPE html>
<html lang="en">

<head>
    <meta charset="UTF-8">
    <meta name="viewport" content="width=device-width, initial-scale=1.0">
    <meta http-equiv="X-UA-Compatible" content="ie=edge">
    <title>Document</title>
    <style>
        p {
            width: 100px;
            height: 100px;
            background-color: aqua;
            /* animation: 动画名称 动画时间 运动曲线 何时开始 播放次数 是否反方向 */
            animation: move 5s linear 3;
        }
        
        @keyframes move {
            0% {
                transform: translate3d(0, 0, 0);
            }
            25% {
                transform: translate3d(400px, 0, 0);
            }
            50% {
                transform: translate3d(400px, 300px, 0);
            }
            75% {
                transform: translate3d(0, 300px, 0);
            }
            100% {
                transform: translate3d(0, 0, 0);
            }
        }
    </style>
</head>

<body>
    <p></p>
</body>

</html>

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