CSS过渡 Transitions

How to Use CSS Transitions?
To create a transition effect, you must specify two things:

the CSS property you want to add an effect to
the duration of the effect
The following example shows a 100px * 100px red

element. The
element has also specified a transition effect for the width property, with a duration of 2 seconds:

div {
  width: 100px;
  height: 100px;
  background: red;
  transition: width 2s;
}
div:hover {
  width: 300px;
}

Specify the Speed Curve of the Transition
The transition-timing-function property specifies the speed curve of the transition effect.

The transition-timing-function property can have the following values:

ease - specifies a transition effect with a slow start, then fast, then end slowly (this is default)
linear - specifies a transition effect with the same speed from start to end
ease-in - specifies a transition effect with a slow start
ease-out - specifies a transition effect with a slow end
ease-in-out - specifies a transition effect with a slow start and end
cubic-bezier(n,n,n,n) - lets you define your own values in a cubic-bezier function

<!DOCTYPE html>
<html>
<head>
<style> 
div {
  width: 100px;
  height: 100px;
  background: red;
  transition: width 2s;
}

#div1 {transition-timing-function: linear;}
#div2 {transition-timing-function: ease;}
#div3 {transition-timing-function: ease-in;}
#div4 {transition-timing-function: ease-out;}
#div5 {transition-timing-function: ease-in-out;}

div:hover {
  width: 300px;
}
</style>
</head>
<body>

<h1>The transition-timing-function Property</h1>

<p>Hover over the div elements below, to see the different speed curves:</p>

<div id="div1">linear</div><br>
<div id="div2">ease</div><br>
<div id="div3">ease-in</div><br>
<div id="div4">ease-out</div><br>
<div id="div5">ease-in-out</div><br>

</body>
</html>

Delay the Transition Effect
The transition-delay property specifies a delay (in seconds) for the transition effect.

The following example has a 1 second delay before starting:

div {
  transition-delay: 1s;
}

<!DOCTYPE html>
<html>
<head>
<style> 
div {
  width: 100px;
  height: 100px;
  background: red;
  transition: width 3s;
  transition-delay: 1s;
}

div:hover {
  width: 300px;
}
</style>
</head>
<body>

<h1>The transition-delay Property</h1>

<p>Hover over the div element below, to see the transition effect:</p>

<div></div>

<p><b>Note:</b> The transition effect has a 1 second delay before starting.</p>

</body>
</html>

Transition + Transformation

<!DOCTYPE html>
<html>
<head>
<style> 
div {
  width: 100px;
  height: 100px;
  background: red;
  transition: width 3s;
  transition-delay: 1s;
}

div:hover {
  width: 300px;
}
</style>
</head>
<body>

<h1>The transition-delay Property</h1>

<p>Hover over the div element below, to see the transition effect:</p>

<div></div>

<p><b>Note:</b> The transition effect has a 1 second delay before starting.</p>

</body>
</html>
posted @ 2025-01-22 10:28  zhongta  阅读(21)  评论(0)    收藏  举报