W3。CSS 动画〔t1〕
哎哎哎:# t0]https://www . geeksforgeeks . org/w3-CSS 动画/
CSS 动画是一种改变网页中各种元素的外观和行为的技术。它用于通过改变元素的运动或显示来控制元素。W3。CSS 为开发人员提供了一些很好的内置动画类。班级名单如下:
| Sr 编号 | 班级名称 | 描述 | | --- | --- | --- | | 1。 | w3-animate-top | 目标元素似乎从顶部滑动。 | | 2。 | w3-animate-bottom | 目标元素似乎从底部滑动。 | | 3。 | w3-animate-left | 目标元素似乎从左侧滑动。 | | 4。 | w3-animate-right | 目标元素似乎从右侧滑动。 | | 5。 | w3-动画-不透明度 | 目标元素的不透明度在 1.5 秒内从 0 变为 1。 | | 6。 | w3-animate-zoom | 目标元素的大小在 0.6 秒内从 0 变为 100%。 | | 7。 | w3-动画-淡入淡出 | 目标元素的不透明度不断从 0 变为 1，再变回 0。 | | 8。 | w3-spin | 目标元素与轴的角度从 0 度持续变化到 360 度。 |示例 1: 在 HTML 页面中使用 w3-animate-top 动画。
超文本标记语言
<!DOCTYPE html>
<html>
<head>
<!-- Adding W3.CSS file through external link -->
<link rel="stylesheet" href=
"https://www.w3schools.com/w3css/4/w3.css">
</head>
<body>
<!-- w3-container is used to add
16px padding to any HTML element. -->
<!-- w3-center is used to set the
content of the element to the center. -->
<!-- w3-animate-top added animation to
this division. -->
<div class="w3-container w3-center
w3-animate-top">
<!-- w3-text-green sets the text colour
to green. -->
<!-- w3-xxlarge sets font size to 32px. -->
<h2 class="w3-text-green w3-xxlarge">
Welcome To GFG
</h2>
</div>
</body>
</html>
输出:
示例 2: 在 HTML 页面中使用 w3-animate-bottom 动画。
超文本标记语言
<!DOCTYPE html>
<html>
<head>
<!-- Adding W3.CSS file through external link -->
<link rel="stylesheet" href=
"https://www.w3schools.com/w3css/4/w3.css">
</head>
<body>
<!-- w3-container is used to add
16px padding to any HTML element. -->
<!-- w3-center is used to set the
content of the element to the center. -->
<!-- w3-animate-bottom added animation to
this division. -->
<div class="w3-container w3-center
w3-animate-bottom">
<!-- w3-text-green sets the text
colour to green. -->
<!-- w3-xxlarge sets font size to 32px. -->
<h2 class="w3-text-green w3-xxlarge">
Welcome To GFG
</h2>
</div>
</body>
</html>
输出:
示例 3: 在 HTML 页面中使用 w3-animate-left 动画。
超文本标记语言
<!DOCTYPE html>
<html>
<head>
<!-- Adding W3.CSS file through external link -->
<link rel="stylesheet"
href="https://www.w3schools.com/w3css/4/w3.css">
</head>
<body>
<!-- w3-container is used to add
16px padding to any HTML element. -->
<!-- w3-center is used to set the
content of the element to the center. -->
<!-- w3-animate-left added animation to this division. -->
<div class="w3-container w3-center w3-animate-left">
<!-- w3-text-green sets the text color to green. -->
<!-- w3-xxlarge sets font size to 32px. -->
<h2 class="w3-text-green w3-xxlarge">
Welcome To GFG
</h2>
</div>
</body>
</html>
输出:
示例 4: 在 HTML 页面中使用 w3-animate-right 动画。
超文本标记语言
<!DOCTYPE html>
<html>
<head>
<!-- Adding W3.CSS file through external link -->
<link rel="stylesheet"
href="https://www.w3schools.com/w3css/4/w3.css">
</head>
<body>
<!-- w3-container is used to add
16px padding to any HTML element. -->
<!-- w3-center is used to set the
content of the element to the center. -->
<!-- w3-animate-right added animation to
this division. -->
<div class="w3-container w3-center w3-animate-right">
<!-- w3-text-green sets the text color to green. -->
<!-- w3-xxlarge sets font size to 32px. -->
<h2 class="w3-text-green w3-xxlarge">
Welcome To GFG
</h2>
</div>
</body>
</html>
输出:
示例 5: 在 HTML 页面中使用 w3-动画-不透明度动画。
超文本标记语言
<!DOCTYPE html>
<html>
<head>
<!-- Adding W3.CSS file through external link -->
<link rel="stylesheet" href=
"https://www.w3schools.com/w3css/4/w3.css">
</head>
<body>
<!-- w3-container is used to add
16px padding to any HTML element. -->
<!-- w3-center is used to set the content
of the element to the center. -->
<!-- w3-animate-opacity added animation
to this division. -->
<div class="w3-container w3-center
w3-animate-opacity">
<!-- w3-text-green sets the text
color to green. -->
<!-- w3-xxlarge sets font size to 32px. -->
<h2 class="w3-text-green w3-xxlarge">
Welcome To GFG
</h2>
</div>
</body>
</html>
输出:
示例 6: 在 HTML 页面中使用 w3-animate-zoom 动画。
超文本标记语言
<!DOCTYPE html>
<html>
<head>
<!-- Adding W3.CSS file through external link -->
<link rel="stylesheet" href=
"https://www.w3schools.com/w3css/4/w3.css">
</head>
<body>
<!-- w3-container is used to add 16px
padding to any HTML element. -->
<!-- w3-center is used to set the content
of the element to the center. -->
<!-- w3-animate-zoom added animation to
this division. -->
<div class="w3-container w3-center
w3-animate-zoom">
<!-- w3-text-green sets the text color
to green. -->
<!-- w3-xxlarge sets font size to 32px. -->
<h2 class="w3-text-green w3-xxlarge">
Welcome To GFG
</h2>
</div>
</body>
</html>
输出:
示例 7: 在 HTML 页面中使用 w3-animate-渐隐动画。
超文本标记语言
<!DOCTYPE html>
<html>
<head>
<!-- Adding W3.CSS file through external link -->
<link rel="stylesheet" href=
"https://www.w3schools.com/w3css/4/w3.css">
</head>
<body>
<!-- w3-container is used to add 16px
padding to any HTML element. -->
<!-- w3-center is used to set the content
of the element to the center. -->
<!-- w3-animate-fading added animation
to this division. -->
<div class="w3-container w3-center
w3-animate-fading">
<!-- w3-text-green sets the text
color to green. -->
<!-- w3-xxlarge sets font size to 32px. -->
<h2 class="w3-text-green w3-xxlarge">
Welcome To GFG
</h2>
</div>
</body>
</html>
输出:
示例 8: 在 HTML 页面中使用 w3 旋转动画。
超文本标记语言
<!DOCTYPE html>
<html>
<head>
<!-- Adding W3.CSS file through external link -->
<link rel="stylesheet" href=
"https://www.w3schools.com/w3css/4/w3.css">
</head>
<body>
<!-- w3-container is used to add 16px
padding to any HTML element. -->
<!-- w3-center is used to set the content
of the element to the center. -->
<!-- w3-spin added animation to this division. -->
<div class="w3-container w3-center w3-spin">
<!-- w3-text-green sets the text
color to green. -->
<!-- w3-xxlarge sets font size to 32px. -->
<h2 class="w3-text-green w3-xxlarge">
Welcome To GFG
</h2>
</div>
</body>
</html>
输出:
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