How to set the html5 border attribute? Introduction to the border attribute in html5 table

html5 How to set the border attribute? The introduction to the border attribute in html5 table is here. This article mainly explains the definition and use of the html5 border attribute in css styles, as well as an introduction to the border attribute in html5 table

html5 The definition and usage of the border attribute in css style:

border shorthand attribute sets all border attributes in one statement.

You can set the following properties in order:

border-width

border-style

border-color

If you do not set any of them A certain value will not cause problems, such as border:solid #ff0000; is also allowed.

Attribute value of html5 border attribute:

CSS border is used to set HTML elements (such as div) border, including the width, color and style of the border. This article introduces the details of the CSS border property to programmers. Interested programmers can refer to it.

CSS border is CSS border-border border style color, border style, border width syntax structure and application case tutorial

1. CSS border basics Knowledge

CSS border is the CSS border that controls the width, color, dashed line, solid line and other style CSS properties of the object's border. At the same time, you can enter the CSS manual provided by the coder tutorial to view the border.

2. Comparison between Html original border and CSS border

Html table control border:

border="1" bordercolor="#000000"

Description: Control the table border width to 1px, css color is black, and the default is a solid-line style border.

3. Border border syntax

1. Four borders

border-left sets the left border. Generally, use ## to set the left border style separately.

#border-right sets the right border. Generally, to set the right border style separately, use

border-top to set the top border. Generally, to set the top border style separately, use

border-bottom to set the bottom border. , generally used to set the bottom border style separately, sometimes the bottom border style can be applied as a css underline effect.

2. The abbreviation of border with the same border on four sides

#manong{border:1px solid #00F}

3. Three styles of borders

Usually we can Set three properties and parameters for the border: width (thickness), border style, and border color.

1) Border color: border-color: #000

2) Border thickness (width): border-width: 1px

Use numerical units to set the border thickness width, For example, 1px (border thickness and width is 1 pixel), the border must be a positive number, a value greater than 0. Otherwise, setting the border style is invalid.

3) border border style: border-style:solid

The border style value is as follows:

• none: No border. Independent of any specified border-width value

• hidden: Hide the border. IE does not support

• dotted: IE4 on the MAC platform and IE5.5 on the WINDOWS and UNIX platforms are dotted lines. Otherwise, it is a solid line (commonly used)

• dashed: IE4 on the MAC platform and IE5.5 on the WINDOWS and UNIX platforms are dotted lines. Otherwise, it is a solid line (commonly used)

• solid: solid border (commonly used)

• double: double border. The sum of two single lines and their interval is equal to the specified border-width value

• groove: Draw a 3D groove according to the value of border-color

• ridge: Draw a diamond border based on the value of border-color

• inset: Draw a 3D concave edge based on the value of border-color

• outset: Based on The value of border-color draws a 3D convex edge

##css border summary:

We use CSS to set the border style, generally we use abbreviations The expression sets the border style of the object, which saves code and simplifies the code function. Whether setting a single border or a four-sided border, we try to abbreviate the CSS border code, which is the abbreviation of CSS border optimization. Commonly used attribute codes for setting CSS styles on objects are: border:1px solid #000;.

HTML tag's border attribute definition and usage:

The border attribute specifies the width of the border surrounding the table.

The border property applies a border to each cell and surrounds the table with a border. If the value of the border property changes, only the size of the border around the table changes. The inner border of the table is 1 pixel wide.

Tip: Set border="0" to display the table without borders.

From a practical point of view, it is best not to specify a border, but to use CSS to add border style and color.

html5 The syntax of the border attribute:

<body border="value">

html5 The attribute value of the border attribute:

pixels: Specifies the width of the table border .

HTML 5 border attribute example:

The following HTML table will display a border around the table cells:

<table border="1">
  <tr>
    <th>月份</th>
    <th>存款</th>
  </tr>
  <tr>
    <td>一月</td>
    <td>1000 元</td>
  </tr>
  <tr>
    <td>二月</td>
    <td>1500 元</td>
  </tr>
</table>

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