How to express underline in web front-end

In Web front-end development, the underscore is a commonly used symbol used to represent link text, URLs, etc. Underlining has a certain style and has different semantics in different contexts. This article will introduce the application and representation method of underline in the Web front-end.

1. Application of underline in Web front-end

1. Link text

In Web pages, underline is often used to represent link text. Link text usually refers to text or pictures that link to other pages or documents. Users can browse to other web pages or documents after clicking on these contents. In order to enable users to clearly identify the link content, the common practice is to underline the link text and distinguish it in font color, usually setting the link text to blue.

2. URL

In addition, underscores are often used to represent URLs. When a URL is inserted into text, it is generally underlined to make it easier for users to identify it. This not only highlights the URL itself, but also allows users to clearly see how the URL relates to the surrounding text.

3. CSS Style

Underlines are also used in CSS styles. In CSS, an underscore usually indicates the state of a pseudo-class or selector. For example, you can use the :hover pseudo-class to set the underline state when the mouse hovers over the link text to enhance the user experience.

2. How to express underline

1. In CSS style sheet

In CSS style sheet, underline needs to be used. Use "_ in the attribute name. "express. For example, you can use text-decoration: underline; to set the underline, so that the link text will appear underlined.

2. In HTML

In HTML, use the "<u>" tag to represent underline. This tag is generally used to represent text. underline. For example:

<p><u>这里是要显示下划线的文本。</u></p>

Additionally, you can also use pseudo-classes to set the underline on links in HTML.

<!-- html -->
<a href="#" class="underline">这里是链接文字</a>

/* css */
a.underline:hover {
    text-decoration: underline;
}

The above is the application and expression method of underline in Web front-end development. The use of underlines not only helps improve user experience, but also highlights the criticality of text information, making it easier for users to notice.

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