使用HTML的

<dl>、<dt>和 <dd>標(biāo)籤可以清晰且語義化地展示術(shù)語及其定義、產(chǎn)品特性或鍵值對。 1. 它適用於詞彙表、元數(shù)據(jù)（如文件詳情）、常見問題解答及產(chǎn)品規(guī)格等場景；2. 結(jié)構(gòu)上一個<dl>包裹多個<dt>（術(shù)語）和 <dd>（描述），可支持一個術(shù)語對應(yīng)多個解釋；3. 正確使用時應(yīng)避免將每組項單獨包裹在各自的<dl>中，也不應(yīng)在其中嵌套標(biāo)題或段落；4. 可通過CSS添加樣式提升可讀性，例如設(shè)置間距、縮進、字體加粗或使用flex/grid佈局。這種結(jié)構(gòu)不僅簡潔明了，還能提升網(wǎng)頁的可訪問性和SEO效果。

有時候你可能需要a way to display terms and their definitions, product features, or other key-value pairs in a clean and semantic way. The HTML <dl></dl> , <dt></dt> , and <dd></dd> tags are perfect for this — they're underused but incredibly useful when applied correctly.

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What is a description list?

A description list ( <dl></dl> ) is a structured way to present a list of terms ( <dt></dt> ) and their corresponding descriptions ( <dd></dd> ). Unlike unordered or ordered lists, it's designed specifically for pairing labels with explanations.

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You'll often see it used in glossaries, FAQs, or even metadata displays (like on product pages). It's not just about how things look — using the right tags improves accessibility and SEO by clearly defining relationships between terms and their descriptions.

When should you use it?

Use a description list when:

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• You're listing terms and definitions (eg, a glossary)
• Displaying metadata like file details (size, type, date modified)
• Presenting frequently asked questions and answers
• Showing product specs (color, size, price, etc.)

It's especially handy when you have multiple items that each need a label and explanation. For example:

• A settings panel where each setting has a name and value
• An API documentation page showing parameters and what they do
• A contact section with labeled info like phone, email, address

How to structure it properly

The basic structure looks like this:

 <dl>
  <dt>Term 1</dt>
  <dd>Description for Term 1</dd>

  <dt>Term 2</dt>
  <dd>Description for Term 2</dd>
</dl>

Each <dt> represents a term, and each <dd> gives its definition or explanation. You can have more than one <dd> per <dt> if needed — for example, if a word has multiple meanings.

One thing people sometimes miss: don't wrap each pair in a separate <dl> . Just one <dl> wraps all the pairs. Also, avoid putting headers or paragraphs inside — keep it simple and semantic.

Styling tips

By default, browsers apply minimal styling, so you'll probably want to add some CSS. Here are a few quick suggestions:

• Add spacing between each term-description pair
• Indent the <dd> elements slightly for visual hierarchy
• Make <dt> bold or change font weight to stand out
• Use flexbox or grid to align them side-by-side on larger screens

For example:

 dl {
  display: grid;
  grid-template-columns: max-content auto;
  gap: 0.5em;
  line-height: 1.5;
}

dt {
  font-weight: bold;
}

This helps create a clean layout without relying on extra divs or wrappers.

基本上就這些。 It's a straightforward element set once you get the hang of it — and when used appropriately, it makes your markup cleaner and more meaningful.

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