​x
 
<!DOCTYPE html>
<html>
​
<style>
body {
  background: #f3f3f3 url('/i/pic/flower.gif');
}
</style>
​
<body>
​
<h1>HTML Style 对象</h1>
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<h2>backgroundRepeat 属性</h2>
​
<button type="button" onclick="myFunction()">把背景图像设置为 no-repeat</button>
​
<script>
function myFunction() {
  document.body.style.backgroundRepeat = "no-repeat";
}
</script>
​
</body>
</html>
​