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<!DOCTYPE html>
<html>
<head>
<style type="text/css">
#block1 {
display: block;
height: 20px;
background-color: green;
margin-bottom: 30px;
}
#table {
display: table;
height: 20px; width: 100px;
background-color: red;
margin-bottom: 30px;
}
#block2 {
display: block;
height: 20px;
background-color: blue;
}
</style>
</head>
<body>
<div id="block1"></div>
<div id="table"></div>
<div id="block2"></div>
</body>
</html>