顯示與隱藏
<!DOCTYPE html>
<html>
<head>
<meta charset="utf-8">
<title>顯示與隱藏</title>
<style>
body {
margin: 0;
}
div {
width: 200px;
height: 200px;
background-color: orange;
font: 30px/200px 'Arial';
color: red;
text-align: center;
margin: 0 auto;
border-radius: 50%;
}
</style>
<style>
/*display
值為none時，盒子會被隱藏，且不在頁面中占位
*/
.box2 {
display: none;
transition: 1s;
}
.box1:hover ~ .box2 {
display: block;
}
.box2:hover {
display: block;
}
</style>
<style>
/*opacity
值為0~1，控制盒子的透明度，但是消失后，在頁面中占位
*/
.box4 {
/*背景顏色不能操作文本*/
/*background-color: rgba(0,0,0,0);*/
opacity: 0;
/*過度效果*/
transition: 1s;
}
.box3:hover ~ .box4 {
opacity: 1;
}
.box4:hover {
opacity: 1;
}
</style>
<style>
.box6 {
width: 0;
height: 0;
/*超出content以外的內容如何處理：hidden隱藏*/
overflow: hidden;
transition: 1s 0s ease;
/*過渡得我屬性個數可以自定義*/
/*transition-property: width, background-color, height;*/
transition-property: all;
}
.box5:hover ~ .box6 {
width: 200px;
height: 200px;
background-color: pink;
}
.box6:hover {
width: 200px;
height: 200px;
background-color: pink;
}
</style>
</head>
<body>
<div class="box1">1</div>
<div class="box2">2</div>
<div class="box3">3</div>
<div class="box4">4</div>
<div class="box5">5</div>
<div class="box6">6</div>
<div class="box7">7</div>
<div class="box8">8</div>
</body>
</html>
