CSS - min-block-size 屬性

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CSS min-block-size 屬性設定元素的最小塊級尺寸。塊的方向由 writing-mode 屬性決定。如果內容在塊中很好地適應，則此屬性無效。

語法

min-block-size: auto | length | percentage | initial | inherit;

屬性值

值 描述
auto 此值為不設定高度限制。預設值。
length 使用長度單位（例如 px、em、rem 等）設定元素的 min-block-size。
percentage 使用相對於包含元素大小的百分比值設定元素的 min-block-size。
initial 將屬性設定為其預設值。
inherit 從父元素繼承該屬性。

CSS 最小塊級尺寸屬性示例

以下示例說明了使用不同值的 min-block-size 屬性。

使用 auto 值的最小塊級尺寸屬性

為了不設定元素 block-size 的任何特定限制，我們使用 auto 值。塊的大小取決於內容的長度。以下示例中顯示了這一點。

示例

<!DOCTYPE html>
<html>
<head>
   <style>
      .container {
         background-color: lightgreen;
         min-block-size: auto;
      }
   </style>
</head>
<body>
   <h2>
      CSS min-block-size property
   </h2>
   <h4>
      min-block-size: auto
   </h4>
   <div class="container">
      <p>
         TutorialsPoint offers comprehensive online 
         tutorials across various subjects, including 
         programming, web development, and data science. 
         It provides accessible, step-by-step guides, 
         practical examples, and interactive learning 
         resources for learners of all levels.
      </p>
   </div>
</body>
</html>

使用長度值的最小塊級尺寸屬性

要設定元素塊的最小尺寸，我們可以使用長度單位（例如 px、em、rem 等）指定尺寸。指定的尺寸將應用於塊。如果內容大於塊的尺寸，則元素將增長以容納內容。以下示例中顯示了這一點。

示例

<!DOCTYPE html>
<html>
<head>
   <style>
      .container {
         background-color: lightgreen;
      }

      .size1 {
         min-block-size: 90px;
      }

      .size2 {
         min-block-size: 4.5em;
      }
   </style>
</head>
<body>
   <h2>
      CSS min-block-size property
   </h2>
   <h4>
      min-block-size: 90px
   </h4>
   <div class="container size1">
      <p>
         TutorialsPoint offers comprehensive online 
         tutorials across various subjects, including 
         programming, web development, and data science. 
         It provides accessible, step-by-step guides, 
         practical examples, and interactive learning 
         resources for learners of all levels.
      </p>
   </div>
   <br/>
   <h4>
      min-block-size: 4.5em
   </h4>
   <div class="container size2">
      <p>
         TutorialsPoint offers comprehensive online 
         tutorials across various subjects, including 
         programming, web development, and data science. 
         It provides accessible, step-by-step guides, 
         practical examples, and interactive learning 
         resources for learners of all levels.
      </p>
   </div>
</body>
</html>

使用百分比值的最小塊級尺寸屬性

要設定元素塊的最小尺寸，我們可以使用相對於包含元素大小的百分比值（例如 10%）指定尺寸。指定的尺寸將應用於塊。如果內容大於塊的尺寸，則元素將增長以容納內容。以下示例中顯示了這一點。

示例

<!DOCTYPE html>
<html>
<head>
   <style>
      .outer-container {
         height: 100px;
      }

      .container {
         background-color: lightgreen;
      }

      .size1 {
         min-block-size: 58%;
      }

      .size2 {
         min-block-size: 75%;
      }
   </style>
</head>
<body>
   <h2>
      CSS min-block-size property
   </h2>
   <h4>
      min-block-size: 58% (of the size 
      of the containing element)
   </h4>
   <div class="outer-container">
      <div class="container size1">
         <p>
            TutorialsPoint offers comprehensive online 
            tutorials across various subjects, including 
            programming, web development, and data science. 
            It provides accessible, step-by-step guides, 
            practical examples, and interactive learning 
            resources for learners of all levels.
         </p>
      </div>
   </div>
   <br/>
   <h4>
      min-block-size: 75% (of the size 
      of the containing element)
   </h4>
   <div class="outer-container">
      <div class="container size2">
         <p>
            TutorialsPoint offers comprehensive online 
            tutorials across various subjects, including 
            programming, web development, and data science. 
            It provides accessible, step-by-step guides, 
            practical examples, and interactive learning 
            resources for learners of all levels.
         </p>
      </div>
   </div>
</body>
</html>

帶書寫模式的最小塊級尺寸屬性

min-block-size 屬性可以與 writing-mode 屬性結合使用，後者確定塊方向。在水平模式下，block-size 從上到下增長。在垂直模式下，block-size 從左到右增長。以下示例中顯示了這一點。

示例

<!DOCTYPE html>
<html>
<head>
   <style>
      .outer-container {
         height: 150px;
      }

      .container {
         background-color: lightgreen;
         min-block-size: 40%;
      }

      .horizontal {
         writing-mode: horizontal-lr;
      }

      .vertical {
         writing-mode: vertical-rl;
      }
   </style>
</head>
<body>
   <h2>
      CSS min-block-size property
   </h2>
   <h4>
      min-block-size: 40% (of the size of the 
      containing element); writing-mode: horizontal-lr;
   </h4>
   <div class="outer-container">
      <div class="container horizontal">
         <p>
            TutorialsPoint offers comprehensive online 
            tutorials across various subjects, including 
            programming, web development, and data science. 
            It provides accessible, step-by-step guides, 
            practical examples, and interactive learning 
            resources for learners of all levels.
         </p>
      </div>
   </div>
   <br/>
   <h4>
      min-block-size: 40% (of the size of the 
      containing element); writing-mode: vertical-rl;
   </h4>
   <div class="outer-container">
      <div class="container vertical">
         <p>
            TutorialsPoint offers comprehensive online 
            tutorials across various subjects, including 
            programming, web development, and data science. 
            It provides accessible, step-by-step guides, 
            practical examples, and interactive learning 
            resources for learners of all levels.
         </p>
      </div>
   </div>
</body>
</html>

支援的瀏覽器

屬性 Chrome Edge Firefox Safari Opera
min-block-size 57.0 79.0 41.0 12.1 44.0
css_properties_reference.htm
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