HTML 按钮标签

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 元素创建的；它们的功能类似于 具有其他可能性的元素，例如在按钮标签之间添加内容和图像。内容文本出现在按钮上的开始标记和结束标记之间。您可以使用 JavaScript 对按钮执行操作或将其包含在表单中。 CSS 可能会处理按钮特殊样式的应用，但不同的浏览器会引入其独特的样式。

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>

HTML 按钮标签的属性

没有使用特殊属性，因为它们没有任何必需的属性；相反，它们被用作具有 type=” 属性的普通按钮。 “甚至这个元素也是使用 CSS 设计的，其属性可以改变按钮标签中的变化。这些属性是 CSS 字体系列、字体粗细、文本装饰和字体样式。背景颜色等着色属性和文本溢出和文本缩进等布局属性。

S.no	Attribute Name	Description	Example
1	autofocus	It is considered a Boolean attribute.	autofocus
2	disabled	Making a button non-clickable.	/button>
3	Form	It Creates a form	…
4	formaction	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.
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:

<title> HTML button tag Example</title>


<h2 id="HTML-button-tag-Example">HTML button tag Example </h2>

Employee Name: Click Reset

Output:

Example #2

Code:

<h3> <center> Example using CSS </center>
<h3>


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>

</h3>
</h3>

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.

Code:

<style>
body {
color: #000;
height: 90vh;
background: linear-gradient(-90deg, #a1c3d1 0%, #c48b9e 100%) no-repeat;
text-align: center;
}
input {
width: 280px;
display: block;
margin: 2rem auto;
border: 3px solid #fbc7ff;
padding: 7px;
background: transparent;
border-radius: 25px;
outline: none;
}
::placeholder {
color: #00ced1;
}
.btn {
background:#96f905;
border: none;
height: 3rem;
border-radius: 20px;
width: 220px;
display: block;
color: #96f905;
outline: none;
margin: 2rem auto;
}
</style>

<h1 id="HTML-Form-action-Using-Button">HTML Form action Using Button</h1>

Click

Output:

Note: You can also increase the button size by giving . 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.

Code:

<title>
Button Demo
<button>autofocus Attribute
</button>
</title>


<h1 style="color: blue;">
EDUCBA Web Tutorial
</h1>
<h2> Button Tag
<button>autofocus Attribute
</button>
</h2>
<h2> Button Tag
<button>autofocus Attribute
</button>
</h2>
<button id="GFG" autofocus>
Press
</button>
<br>

Output:

Example #5

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:

<title>HTML  On Click Button Demo</title>


<h3 id="HTML-On-Click-Button-Demo"> HTML  On Click Button Demo</h3>
<button onclick="alert('Hi Welcome to EDUCBA!')"> Press me... </button>

Output: Before the button press

Alert Message – After the Button click

Example #6

Code:

<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">


<p>The button loads to the next web page!</p>
<a href="https://www.educba.com" target="_blank">
<button>Submit!</button>
</a>

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.

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