CSS border properties: border-width, border-style and border-color

CSS border properties: border-width, border-style and border-color, specific code examples are required

CSS is a language used to control the style of web pages. The border property is one of the most commonly used properties in CSS. In web design, borders can effectively enhance the appearance and visualization of elements. This article will introduce in detail the border properties in CSS - border-width, border-style and border-color, as well as some specific code examples.

1. Border-width attribute

The border-width attribute is used to set the width of the border. It can accept the following values:

• thin: Set the border width to a relatively thin value
• medium: Set the border width to a medium value (default value)
• thick: Set the border width to a relatively thick value
• Specific value: Set the width of the border by specifying a specific value (such as 1px)

Sample code ：

.border-example { border-width: thin; }

.border-example { border-width: medium; }

.border-example { border-width: 2px; }

2. Border-style attribute

The border-style attribute is used to set the style of the border. It can accept the following values:

• none: no border (default value)
• solid: solid border
• dashed: dashed border
• dotted: dotted border
• double: double border

Sample code:

.border-example { border-style: none; }

.border-example { border-style: solid; }

.border-example { border-style: dashed; }

3. border-color attribute

border- The color attribute is used to set the color of the border. It can accept the following values:

• Color name: such as red, green, etc.
• Hexadecimal value: such as #ff0000, #00ff00, etc.
• RGB Value: such as rgb(255, 0, 0), rgb(0, 255, 0), etc.

Sample code:

.border-example { border-color: red; }

.border-example { border-color: #0000ff; }

.border-example { border-color: rgb(0, 255, 0); }

4. Comprehensive example

The following is an example code that comprehensively uses these border attributes:

.border-example { border-width: 2px; border-style: dashed; border-color: #ff0000; }

The above code will add a border with a width of 2px, a dashed style, and a red color to the element named ".border-example".

Summary:
This article introduces the border properties in CSS-border-width, border-style and border-color. By setting these properties, we can customize the border style, width, and color of web page elements. With specific code examples, we can better understand how to use these properties to achieve different border effects. Hope this article is helpful to you!

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