Buttons are the core element of web interaction, and are most direct to creating using HTML's <button> tag. 1. The basic usage is to put text between the tags. For example, click me on <button> to display the default style and trigger events; 2. The type attribute defines behavior, including button, submit, reset, which is submitted by default; 3. Use the disabled attribute to disable buttons to prevent repeated submissions; 4. Customize the styles through class or style, it is recommended to use class for easy maintenance. Although the button is simple, you need to pay attention to the details when using it well.
Buttons are one of the core elements of web interaction, and HTML <button></button> tags are the most direct and commonly used creation methods. Not only is it semantic clear, it is also flexible in function and style control.
Basic usage: How to write a button correctly
The simplest way to write <button></button> is to put text between the start label and the end label, such as:
<button>Click me</button>
This creates a clickable button, which is displayed as "Click Me" by default. The browser will automatically add default styles to it, such as background color, border and inner margin. You can place buttons in a form or use them alone to trigger JavaScript events.
It should be noted that the <button> tag can not only place text, but also other HTML elements such as pictures and icons, which is more flexible than <input type="button"> .
Different types of buttons: the function of type attributes
type attribute of a button determines its behavior, and the three most common types are:
-
button: Normal button, usually used to bind JavaScript events -
submit: Submit button, used to submit a form -
reset: Reset button, used to reset form content
For example:
<button type="submit">Submit</button> <button type="reset">Reset</button> <button type="button" onclick="alert('Hello')">Click to trigger</button>
If type is not specified, most browsers will default to submit , which can cause unexpected behavior in the form. Therefore, it is recommended to write out type attribute clearly to avoid ambiguity.
Disabled status of button: How to prevent users from clicking
Sometimes we need to make the button temporarily unclickable, such as preventing repeated submissions after submitting the form. You can use the disabled attribute at this time:
<button disabled>Please wait</button>
The disabled button added will become grayed out and cannot be clicked. This state can be dynamically modified through JavaScript, such as enabling the button after verification is passed.
A small detail is: when the button is disabled, the click event bound to it will not be triggered, so no additional status judgment is required.
Adding a dot style to the button: how to use class and style
Although <button> comes with its own default style, most of the time we customize the appearance. Styles can be controlled through class or style :
<button class="my-button">Button with class name</button> <button style="background-color: #ff4444; color: white;">Inline style button</button>
It is recommended to use class to bind styles, which is easier to maintain and reuse. For example, defined in CSS:
.my-button {
background-color: #007bff;
color: white;
padding: 10px 20px;
border: none;
border-radius: 4px;
}This not only makes the buttons more beautiful, but also unifies the style and avoids confusion in style.
Basically that's it. Although buttons are simple, using them well is not as simple as writing a label.
The above is the detailed content of Creating Buttons with the HTML `button` Tag. For more information, please follow other related articles on the PHP Chinese website!
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