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tut25.html
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tut25.html
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<!DOCTYPE html>
<html lang="en">
<head>
<meta charset="UTF-8">
<meta name="viewport" content="width=device-width, initial-scale=1.0">
<title>Visibility and z-index</title>
<style>
.box{
width: 170px;
height: 170px;
border: 2px solid black;
}
#box1{
z-index: 30;
position: relative;
top: 49px;
background-color: green;
}
#box2{
z-index: 36;
position: relative;
top: 14px;
/*display: none;*/
/*visibility: hidden;*/
background-color: rgb(175, 202, 175);
}
#box3{
background-color: rgb(119, 128, 0);
}
#box4{
background-color: rgb(0, 128, 122);
}
</style>
</head>
<body>
<div class="box" id="box1"></div>
<div class="box" id="box2"></div>
<div class="box" id="box3"></div>
<div class="box" id="box4"></div>
</body>
</html>