What are the new border attributes in css3?
New border attributes in css3: 1. "border-image", which is an abbreviated attribute used to set the style of the element's border; 2. "border-radius", which is used to set the four corners of the element. Rounded corner style; 3. "box-shadow", this attribute is used to set one or more drop-down shadow boxes of the element.
The operating environment of this tutorial: Windows 10 system, CSS3&&HTML5 version, Dell G3 computer.
What are the new border attributes in css3
In css3, the new border attributes are: border-image, border-radius and box-shadow property.
1. border-image
The border-image attribute is a shorthand attribute used to set the following attributes:
Examples are as follows:
<html>
<head>
<style>
div
{
border:15px solid transparent;
width:300px;
padding:10px 20px;
}
#round
{
-moz-border-image:url(/i/border.png) 30 30 round;/* Old Firefox */
-webkit-border-image:url(/i/border.png) 30 30 round;/* Safari and Chrome */
-o-border-image:url(/i/border.png) 30 30 round;/* Opera */
border-image:url(/i/border.png) 30 30 round;
}
#stretch
{
-moz-border-image:url(/i/border.png) 30 30 stretch;/* Old Firefox */
-webkit-border-image:url(/i/border.png) 30 30 stretch;/* Safari and Chrome */
-o-border-image:url(/i/border.png) 30 30 stretch;/* Opera */
border-image:url(/i/border.png) 30 30 stretch;
}
</style>
</head>
<body>
<div id="round">在这里，图片铺满整个边框。</div>
<br>
<div id="stretch">在这里，图片被拉伸以填充该区域。</div>
<p>这是我们使用的图片：</p>
<img src="/static/imghw/default1.png" data-src="/i/border.png" class="lazy" alt="What are the new border attributes in css3?" >
<p><b>注释：</b> Internet Explorer 不支持 border-image 属性。</p>
<p>border-image 属性规定了用作边框的图片。</p>
</body>
</html>Output results:
2, border-radius
border- The radius attribute is a shorthand attribute, used to set the rounded style of the four corners. The syntax is as follows:
border-radius: 1-4 length|% / 1-4 length|%;
The example is as follows:
<html>
<head>
<style>
div
{
text-align:center;
border:2px solid #a1a1a1;
padding:10px 40px;
background:#dddddd;
width:350px;
border-radius:25px;
-moz-border-radius:25px; /* 老的 Firefox */
}
</style>
</head>
<body>
<div>border-radius 属性允许您向元素添加圆角。</div>
</body>
</html>Output result:
3. box-shadow
The box-shadow property can set one or more drop-down shadow boxes. The syntax is as follows:
box-shadow: h-shadow v-shadow blur spread color inset;
The example is as follows:
<html>
<head>
<meta charset="utf-8">
<title>123</title>
<style>
div
{
width:300px;
height:100px;
background-color:yellow;
box-shadow: 10px 10px 5px #888888;
}
</style>
</head>
<body>
<div></div>
</body>
</html>Output result:
(Learning video sharing: css video tutorial)
The above is the detailed content of What are the new border attributes in css3?. For more information, please follow other related articles on the PHP Chinese website!
Hot AI Tools
Undresser.AI Undress
AI-powered app for creating realistic nude photos
AI Clothes Remover
Online AI tool for removing clothes from photos.
Undress AI Tool
Undress images for free
Clothoff.io
AI clothes remover
Video Face Swap
Swap faces in any video effortlessly with our completely free AI face swap tool!
Hot Article
Hot Tools
Notepad++7.3.1
Easy-to-use and free code editor
SublimeText3 Chinese version
Chinese version, very easy to use
Zend Studio 13.0.1
Powerful PHP integrated development environment
Dreamweaver CS6
Visual web development tools
SublimeText3 Mac version
God-level code editing software (SublimeText3)
Hot Topics
1655
14
1413
52
1306
25
1252
29
1226
24
How to use bootstrap in vue
Apr 07, 2025 pm 11:33 PM
Using Bootstrap in Vue.js is divided into five steps: Install Bootstrap. Import Bootstrap in main.js. Use the Bootstrap component directly in the template. Optional: Custom style. Optional: Use plug-ins.
Understanding HTML, CSS, and JavaScript: A Beginner's Guide
Apr 12, 2025 am 12:02 AM
WebdevelopmentreliesonHTML,CSS,andJavaScript:1)HTMLstructurescontent,2)CSSstylesit,and3)JavaScriptaddsinteractivity,formingthebasisofmodernwebexperiences.
The Roles of HTML, CSS, and JavaScript: Core Responsibilities
Apr 08, 2025 pm 07:05 PM
HTML defines the web structure, CSS is responsible for style and layout, and JavaScript gives dynamic interaction. The three perform their duties in web development and jointly build a colorful website.
How to write split lines on bootstrap
Apr 07, 2025 pm 03:12 PM
There are two ways to create a Bootstrap split line: using the tag, which creates a horizontal split line. Use the CSS border property to create custom style split lines.
How to insert pictures on bootstrap
Apr 07, 2025 pm 03:30 PM
There are several ways to insert images in Bootstrap: insert images directly, using the HTML img tag. With the Bootstrap image component, you can provide responsive images and more styles. Set the image size, use the img-fluid class to make the image adaptable. Set the border, using the img-bordered class. Set the rounded corners and use the img-rounded class. Set the shadow, use the shadow class. Resize and position the image, using CSS style. Using the background image, use the background-image CSS property.
How to set up the framework for bootstrap
Apr 07, 2025 pm 03:27 PM
To set up the Bootstrap framework, you need to follow these steps: 1. Reference the Bootstrap file via CDN; 2. Download and host the file on your own server; 3. Include the Bootstrap file in HTML; 4. Compile Sass/Less as needed; 5. Import a custom file (optional). Once setup is complete, you can use Bootstrap's grid systems, components, and styles to create responsive websites and applications.
How to use bootstrap button
Apr 07, 2025 pm 03:09 PM
How to use the Bootstrap button? Introduce Bootstrap CSS to create button elements and add Bootstrap button class to add button text
How to resize bootstrap
Apr 07, 2025 pm 03:18 PM
To adjust the size of elements in Bootstrap, you can use the dimension class, which includes: adjusting width: .col-, .w-, .mw-adjust height: .h-, .min-h-, .max-h-
