CSS3 Tutorial - User Interface-CSS Tutorial-php.cn

CSS3 Tutorial - User Interface

黄舟

Release： 2016-12-27 15:32:37

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Hello! Dear front-end development friends, thank you for always accompanying me. Today’s CSS3 tutorial-user interface is the last article of the CSS3 tutorial. I hope you can learn something truly practical.

CSS3 re-provides unique rendering attributes for the website interface. This article introduces them in detail.

CSS3 User Interface:

In CSS3, new user interface features include resizing elements, box sizes, and outlines.

In this chapter, you will learn the following user interface properties:

1. resize;

2. box-sizing;

3. outline -offset.

Browser support:

CSS3 Tutorial - User Interface

##Firefox, Chrome and Safari support the resize attribute.

Internet Explorer, Chrome, Safari, and Opera support the box-sizing attribute. Firefox requires the prefix -moz-.

All major browsers support the outline-offset attribute, except Internet Explorer.

CSS3 Resizing:

In CSS3, the resize attribute specifies whether an element can be resized by the user.

CSS3 Tutorial - User Interface

The CSS code is as follows:

Example:

Specifies that the p element can be resized by the user:

p
{
resize:both;
overflow:auto;
}

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CSS3 Box Sizing: The

box-sizing property allows you to define exactly what content will fit into a certain area.

Example:

Specify two side-by-side bordered boxes:

p
{
box-sizing:border-box;
-moz-box-sizing:border-box; /* Firefox */
-webkit-box-sizing:border-box; /* Safari */
width:50%;
float:left;
}

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CSS3 Outline Offset:

The outline-offset property offsets the outline , and draw the outline beyond the edge of the border.

There are two differences between outlines and borders:

1. The outline does not take up space;

2. The outline may be non-rectangular.

CSS3 Tutorial - User Interface

The CSS code is as follows:

Example:

Specifies the outline 15 pixels outside the edge of the border:

p
{
border:2px solid black;
outline:2px solid red;
outline-offset:15px;
}

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New user interface properties:

The following table lists all conversion properties:

CSS3 Tutorial - User Interface

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