css 动画使用_如何在CSS中使用动画

css 动画使用

使用CSS动画 (Using CSS Animations)

CSS animations add beauty to the webpages and make transitions from one CSS style to the other beautiful.

CSS动画可以使网页更加美观，并可以从一种CSS样式过渡到另一种CSS样式。

To create a CSS animation sequence, we have different sub-properties in the animation property in CSS :

要创建CSS动画序列，我们在CSS的animation属性中具有不同的子属性：

animation-delay
animation-delay
animation-direction
animation-direction
animation-duration
animation-duration
animation-iteration-count
animation-iteration-count
animation-name
animation-name
animation-play-state
animation-play-state
animation-timing-function
animation-timing-function
animation-fill-mode
animation-fill-mode

示例CSS动画序列可在屏幕上移动文本 (Sample CSS animation sequence to move text across the screen)

In the HTML part we will have a div with class container and a h3 with the text Hello World:

在HTML部分，我们将有一个带类container的div和一个带文本Hello World的h3 ：

<div class="container"><h3> Hello World ! </h3>
</div>

For the CSS part:

对于CSS部分：

.container {/* We will define the width, height and padding of the container *//* The text-align to center */width: 400px;height: 60px;padding: 32px;text-align: center;/* Use the animation `blink` to repeat infinitely for a time period of 2.5s*/animation-duration: 2.5s;           animation-iteration-count: infinite;animation-direction: normal;        animation-name: blink;              /* The same can be written shorthand as     *//* --------------------------------------   *//* animation: 2.5s infinite normal blink;   */
}
@keyframes blink {0%, 100% {              /* Defines the properties at these frames */background: #333;color: white;}50% {                   /* Defines the properties at these frames */background: #ccc;color: black;border-radius: 48px;}
}