How to add borders to elements in javascript-JS Tutorial-php.cn

How to add borders to elements in javascript

青灯夜游

Release： 2023-01-11 09:20:37

Original

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How to add a border to an element in JavaScript: 1. Use the statement "Element object.style.border="width value style value color value""; 2. Use "Element object.style.cssText="border" :Width value style value color value "" statement.

How to add borders to elements in javascript

The operating environment of this tutorial: windows7 system, javascript version 1.8.5, Dell G3 computer.

Method 1: Use HTML DOM border attribute

Syntax: Object.style.border=borderWidth borderStyle borderColor

Example:

<!DOCTYPE html>
<html>
	<head>
		<meta charset="UTF-8" id="remove">
		<style>
			div{
				width: 80px;
				height: 30px;
				margin: 10px auto;
			}
		</style>
	</head>

	<body style="text-align:center;">
		<p style="font-size: 19px; font-weight: bold;">单击按钮给div元素添加边框</p>
		<div id="div">div元素</div>
		<button onClick="Fun()">点击这里</button>
		<script>
			var div = document.getElementById(&#39;div&#39;); //获取div元素对象

			function Fun() {
				div.style.border="1px solid red"; //给div元素对象添加样式
			}
		</script>
	</body>
</html>

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How to add borders to elements in javascript

##2. Use cssText attribute

The essence of cssText is to set the style attribute value of HTML elements.

Syntax:

Object.style.cssText="Attribute name: attribute value";

Example:

<!DOCTYPE html>
<html>
	<head>
		<meta charset="UTF-8" id="remove">
		<style>
			div{
				width: 80px;
				height: 30px;
				margin: 10px auto;
			}
		</style>
	</head>

	<body style="text-align:center;">
		<p style="font-size: 19px; font-weight: bold;">单击按钮给div元素添加边框</p>
		<div id="div">div元素</div>
		<button onClick="Fun()">点击这里</button>
		<script>
			var div = document.getElementById(&#39;div&#39;); //获取div元素对象

			function Fun() {
				div.style.cssText="border:1px dashed green"; //给div元素对象添加样式
			}
		</script>
	</body>
</html>

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Rendering:

How to add borders to elements in javascript

[Recommended learning:

javascript advanced tutorial]

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