HTML 按钮标签允许使用 HTML 文档在网页上创建活动按钮控件。这个<按钮>元素在 body 标记内声明。为什么我们需要一个按钮元素？通常，当用户访问网页时，他最常见的行为是单击网站上的某个位置，从而转到下一个 URL 页面。为此，Button 元素无法单独完成；它是由表单操作创建的，其中 Web 表单有一个默认的提交按钮单击。
按钮是使用
语法：
与其他 HTML 标签一样，即使按钮标签也有开始和结束标签，并且按钮类型是使用属性定义的。
<button>
// some stuff like content / image
</button>
It specifies the current location for submitting the form data.
5
formnovalidate
It appears in gray and gives non-validation features.
6
Formmethod
It specifies the methods while referring to the next web page(get the post of HTTP methods)
7
formtarget
It specifies the target path for the server response when a form action is done.
8
formenctype
It has been used when a form is submitted to the webserver for the response; it activates the type of content used.
…..
8
name
It specifies the button name used in the form element, which is used by form inputs.
9
type
It specifies the type of button being used. It has three default values submit, reset, and text.
< button type “……” >
10
value
It gives an initial value when a button is used along with the form data
11
tabindex
It specifies the tab key and the order does the preference.
12
onclick
When a button is pressed, it runs a small javascript code behind it.
Examples to Implement in HTML Button Tag
Below are examples of implementing an HTML Button Tag:
Example #1
Code:
<!DOCTYPE html>
<html lang="en">
<head>
<title> HTML button tag Example</title>
</head>
<body>
<h2>HTML button tag Example </h2>
<form action="/examples/html/action.php" method="post">
<p>
Employee Name: <input type="text" name="Employee-Name">
<button type="submit" value="Submit">Click</button>
<button type="reset" value="Reset">Reset</button>
</p>
</form>
</body>
</html>
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Output:
Example #2
Code:
<!DOCTYPE html>
<html>
<head>
<h3> <center> Example using CSS </center><h3>
</head>
<body>
Normal Class
<button type="button">Add to the First class</button>
<hr />
Economic Class
<button type="button" style="color: pink;"><b> Book Economic Class </b></button>
<hr />
Bussiness class
<button type="button" style="color: orange;"><b> Book Bussiness Class </b></button>
<hr />
Departure
<button type="button" style="font: bold 12px Open Sans;">Norway </button><br />
</body>
</html>
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Output:
Example #3
With CSS: Here, we have used padding and margin property. Here are some ways to look at the page better. To create a button with rounded corners, use border-radius.
Note: You can also increase the button size by giving < button type=” button” style=: font-size: 30px”>. btn in the above code is the bootstrap function class.
Example #4
The below example shows how to use the attribute autofocus with button element; in an example, when a page Loads, it focuses on the first HTML control.
onclick attribute demo. In the below example, I have used JavaScript to take action in the button; meanwhile, it alerts a dialog box with a text message. We use a JavaScript function to make the critical decision by activating the button with onclick().
Code:
<!DOCTYPE html>
<html>
<head>
<title>HTML On Click Button Demo</title>
</head>
<body>
<h3> HTML On Click Button Demo</h3>
<button onclick="alert('Hi Welcome to EDUCBA!')"> Press me... </button>
</body>
</html>
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Output: Before the button press
Alert Message – After the Button click
Example #6
Code:
<!DOCTYPE html>
<html>
<head>
<script type="text/javascript" src="scripts.js">
</script>
<link rel="stylesheet" href="styles.css">
<script type="text/javascript" src="scripts.js"></script>
<link rel="stylesheet" href="styles.css">
</head>
<body>
<p>The button loads to the next web page!</p>
<a href="https://www.educba.com" target="_blank">
<button>Submit!</button>
</a>
</body>
</html>
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Output:
Conclusion
In summary, we have learned about the HTML Button tag. This tag initiates an action and submits content within an HTML document. Important aspects of the website create an easy button, CSS, and JavaScript to look colorful. You can also learn many options related to buttons.
