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How to quote css

Apr 24, 2023 am 09:08 AM

CSS is the abbreviation of Cascading Style Sheet, which is a language used to describe the style of web pages. When we want to add style to a web page, we need to use CSS to achieve it. When developing a web page, multiple CSS files and style sheets are often used, so it is very important to correctly reference CSS. This article will introduce how to reference CSS.

1. Internal style sheet

The internal style sheet refers to a style sheet that writes CSS code directly in the HTML file. This method works with common styles, such as page background color, text size, and link color. Define the <style> tag at the head of the HTML document, and then write the CSS code inside it, as shown below:

<!DOCTYPE html>
<html>
    <head>
        <title>内部样式表</title>
        <style>
            /* CSS代码 */
            body {
                background-color: #f8f8f8;
            }
            h1 {
                color: blue;
            }
        </style>
    </head>
    <body>
        <h1>欢迎来到我的网站</h1>
        <p>这是一个演示如何引用CSS的网页。</p>
    </body>
</html>
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2. External style sheet

External Style sheets are usually placed in separate CSS files and then referenced in HTML files through the <link> tag. This method is suitable for multiple pages using the same style, which can save code duplication. First create a CSS file, such as style.css, and then add the <link> tag at the head of the HTML file to reference the CSS file, as shown below:

<!DOCTYPE html>
<html>
    <head>
        <title>外部样式表</title>
        <link rel="stylesheet" href="style.css">
    </head>
    <body>
        <h1>欢迎来到我的网站</h1>
        <p>这是一个演示如何引用CSS的网页。</p>
    </body>
</html>
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Write the style in the CSS file, as shown below:

/* style.css */
body {
    background-color: #f8f8f8;
}
h1 {
    color: blue;
}
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3. Inline style

Inline style refers to writing CSS code in the style## of the label #Attributes, as shown below:

<!DOCTYPE html>
<html>
    <head>
        <title>行内样式</title>
    </head>
    <body>
        <h1 style="color:blue;">欢迎来到我的网站</h1>
        <p style="font-size:16px;">这是一个演示如何引用CSS的网页。</p>
    </body>
</html>
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This method is suitable for setting styles for only one label, such as setting a specific border style, etc. Note that inline styles will take precedence over internal and external style sheets.

Summary:

The three methods introduced above can all be used to reference CSS. Internal style sheets are suitable for situations where a small number of styles are needed, external style sheets are suitable for situations where multiple pages use the same style, and inline styles are suitable for situations where only one label needs to be styled. No matter which method is used, correctly quoting CSS can improve the maintainability and efficiency of the web page, making it more convenient to modify the style.

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