CSS3 User Interface
CSS3 User Interface
In CSS3, some new user interface features have been added to adjust element size, box size and outer border.
In this chapter, you will learn about the following user interface properties:
resizebox-sizingoutline-offset
##CSS3 Resizing
In CSS3, the resize attribute specifies whether an element should be resized by the user. This div element is resized by the user. (In Firefox 4+, Chrome, and Safari)<!DOCTYPE html>
<html>
<head>
<meta charset="utf-8">
<title>php中文网(php.cn)</title>
<style>
div
{
border:2px solid;
padding:10px 40px;
width:300px;
resize:both;
overflow:auto;
}
</style>
</head>
<body>
<p><b>注意:</b> Firefox, Safari,和 Chrome 兼容 resize 属性.</p>
<div>调整属性指定一个元素是否由用户可调整大小的。.</div>
</body>
</html>CSS3 Box Sizing
box-sizing property Allows you to define exactly what is appropriate for a zone.<!DOCTYPE html>
<html>
<head>
<meta charset="utf-8">
<title>php中文网(php.cn)</title>
<style>
div.container
{
width:30em;
border:1em solid;
}
div.box
{
box-sizing:border-box;
-moz-box-sizing:border-box; /* Firefox */
width:50%;
border:1em solid red;
float:left;
}
</style>
</head>
<body>
<div class="container">
<div class="box">这个div占据了左边的一半。.</div>
<div class="box">这个div占据了右边的一半。</div>
</div>
</body>
</html>CSS3 outline modification (outline-offset)
The outline-offset property offsets the outline and draws the outline beyond the edge of the border. Outlines differ from borders in two ways: Outlines take up no space Outlines may be non-rectangularThis div has an outline 15 pixels outside the border. The CSS code is as follows:<!DOCTYPE html>
<html>
<head>
<meta charset="utf-8">
<title>php中文网(php.cn)</title>
<style>
div
{
margin:20px;
width:150px;
padding:10px;
height:70px;
border:2px solid black;
outline:2px solid red;
outline-offset:15px;
}
</style>
</head>
<body>
<p><b>注意:</b> Internet Explorer 不兼容 outline-offset属性.</p>
<div>这个 div有一个轮廓边界15 px边境外的边缘。</div>
</body>
</html>New user interface features
Attributes Standard user interface elements 3
box-sizing allows you to adapt The area defines certain elements in some way 3
