Home Web Front-end HTML Tutorial css div box model research notes_html/css_WEB-ITnose

css div box model research notes_html/css_WEB-ITnose

Jun 24, 2016 am 11:49 AM

The red mark is the default value

1. border (border): border-top, border-bottom, border-left, border-right

1.border-color (border color);

2.border-width (border thickness): medium|thin|thick|value;

3.border-style (border style ):none|hidden|dotted|dashed|solid|

2. padding (padding): padding-top, padding-bottom, padding-left, padding-right

3. margin (margin): margin-top, margin-bottom, margin-left, margin-right

When margin is set to a negative number, it will cause the block set to a negative number to move in the opposite direction and set overlay on another block. When there is a parent-child relationship between blocks, the word block can be separated from the parent block by setting the margin of the child block to a negative number.

4. background-color: (background color)

1. When setting the background-color background color for an element, the area that IE works on is content padding, while Firefox uses content padding border. .
2. The body is a special box, and its background color will extend to the margin.

Abbreviated form of attribute:

1. If two attribute values ​​are given, the former represents the upper and lower attributes, and the latter represents the left and right attributes.

2. If 3 attribute values ​​are given, the former represents the upper attribute, the middle value represents the left and right attributes, and the latter represents the lower attribute.

3. If 4 attribute values ​​are given, they represent the attributes of top, right, bottom, and left in order, sorted clockwise.

Classification of elements

1. Block-level elements (block): occupy one line

The vertical margin between block-level elements div1 and div2=MAX(margin_bottom of div1, div2's margin-top)

2. Inline elements (inline)

The horizontal margin between the inline elements span1 and span2=(span1's margin-right) (span2's margin-left)

Box float:

1. Set float: float:none|left|right

2. Clear float: clear:none|left |right|both

Statement of this Website
The content of this article is voluntarily contributed by netizens, and the copyright belongs to the original author. This site does not assume corresponding legal responsibility. If you find any content suspected of plagiarism or infringement, please contact admin@php.cn

Hot Article Tags

Notepad++7.3.1

Notepad++7.3.1

Easy-to-use and free code editor

SublimeText3 Chinese version

SublimeText3 Chinese version

Chinese version, very easy to use

Zend Studio 13.0.1

Zend Studio 13.0.1

Powerful PHP integrated development environment

Dreamweaver CS6

Dreamweaver CS6

Visual web development tools

SublimeText3 Mac version

SublimeText3 Mac version

God-level code editing software (SublimeText3)

Difficulty in updating caching of official account web pages: How to avoid the old cache affecting the user experience after version update? Difficulty in updating caching of official account web pages: How to avoid the old cache affecting the user experience after version update? Mar 04, 2025 pm 12:32 PM

Difficulty in updating caching of official account web pages: How to avoid the old cache affecting the user experience after version update?

How do I use HTML5 form validation attributes to validate user input? How do I use HTML5 form validation attributes to validate user input? Mar 17, 2025 pm 12:27 PM

How do I use HTML5 form validation attributes to validate user input?

What is the purpose of the <iframe> tag? What are the security considerations when using it? What is the purpose of the <iframe> tag? What are the security considerations when using it? Mar 20, 2025 pm 06:05 PM

What is the purpose of the <iframe> tag? What are the security considerations when using it?

How to efficiently add stroke effects to PNG images on web pages? How to efficiently add stroke effects to PNG images on web pages? Mar 04, 2025 pm 02:39 PM

How to efficiently add stroke effects to PNG images on web pages?

What is the purpose of the <meter> element? What is the purpose of the <meter> element? Mar 21, 2025 pm 12:35 PM

What is the purpose of the <meter> element?

What is the purpose of the <datalist> element? What is the purpose of the <datalist> element? Mar 21, 2025 pm 12:33 PM

What is the purpose of the <datalist> element?

What is the viewport meta tag? Why is it important for responsive design? What is the viewport meta tag? Why is it important for responsive design? Mar 20, 2025 pm 05:56 PM

What is the viewport meta tag? Why is it important for responsive design?

What is the purpose of the <progress> element? What is the purpose of the <progress> element? Mar 21, 2025 pm 12:34 PM

What is the purpose of the <progress> element?

See all articles