CSS - margin-inline-start 屬性

CSS margin-inline-start 屬性設定元素的內聯起始邊的邊距。書寫模式和方向屬性定義了內聯方向。

語法

margin-inline-start: auto | length | percentage | initial | inherit;

屬性值

值	描述
auto	瀏覽器自動設定內聯起始邊的邊距。預設值。
length	使用長度單位（例如 px、em、rem 等）設定內聯起始邊的邊距空間。允許使用負值。
percentage	使用百分比值（例如 10%）相對於包含元素的內聯方向設定內聯起始邊的邊距空間。
initial	將屬性設定為其預設值。
inherit	從父元素繼承屬性。

CSS 內聯起始邊距屬性示例

以下示例使用不同的值解釋了margin-inline-start 屬性。

使用 auto 值的內聯起始邊距屬性

為了允許瀏覽器根據可用空間自動計算元素的內聯起始邊的邊距，我們使用auto 值。以下示例顯示了這一點。

示例

<!DOCTYPE html>
<html>

<head>
   <style>
      .container {
         height: 200px;
         padding: 20px;
      }

      .container>div {
         width: 150px;
         height: 200px;
         float: left;
         box-sizing: border-box;
      }

      .props {
         text-align: center;
         padding: 10px;
      }

      .auto-box {
         background-color: lightblue;
         border: 3px solid blue;
         margin-inline-start: auto;
      }

      .demo-box {
         background-color: #04bf52;
      }
   </style>
</head>

<body>
   <h2>
      CSS margin-inline-start property
   </h2>
   <h4>
      margin-inline-start: auto
   </h4>
   <div class="container">
      <div class="demo-box props">
         sample box
      </div>
      <div class="auto-box props">
         This box has margin-inline-start: auto
      </div>
      <div class="demo-box props"> 
         sample box
      </div>
   </div>
</body>

</html>

使用長度值的內聯起始邊距屬性

要設定元素的內聯起始邊的邊距，我們可以使用長度單位（例如 px、em、rem 等）指定邊距大小。以下示例顯示了這一點。

示例

<!DOCTYPE html>
<html>

<head>
   <style>
      .container {
         height: 200px;
         width: 490px;
         padding: 20px;
      }

      .container>div {
         width: 150px;
         height: 200px;
         float: left;
         box-sizing: border-box;
      }

      .props {
         text-align: center;
         padding: 10px;
      }

      .center {
         background-color: lightblue;
         border: 3px solid blue;
      }

      .px-box {
         margin-inline-start: 20px;
      }

      .em-box {
         margin-inline-start: 2em;
      }

      .demo-box {
         background-color: #04bf52;
      }
   </style>
</head>

<body>
   <h2>
      CSS margin-inline-start property
   </h2>
   <h4>
      margin-inline-start: 10px
   </h4>
   <div class="container">
      <div class="demo-box props">
         sample box
      </div>
      <div class="px-box props center">
         This box has margin-inline-start: 10px 
      </div>
      <div class="demo-box props"> 
         sample box
      </div>
   </div>
   <h4>
      margin-inline-start: 2em
   </h4>
   <div class="container">
      <div class="demo-box props">
         sample box
      </div>
      <div class="em-box props center">
         This box has margin-inline-start: 2em;
      </div>
      <div class="demo-box props"> 
         sample box
      </div>
   </div>
</body>

</html>

使用百分比值的內聯起始邊距屬性

要設定元素的內聯起始邊的邊距，我們可以使用百分比值（例如 10%（包含元素的寬度的 10%））指定邊距大小。以下示例顯示了這一點。

示例

<!DOCTYPE html>
<html>

<head>
   <style>
      .container {
         height: 200px;
         width: 490px;
         padding: 20px;
      }

      .container>div {
         width: 150px;
         height: 200px;
         float: left;
         box-sizing: border-box;
      }

      .props {
         text-align: center;
         padding: 10px;
      }

      .center {
         background-color: lightblue;
         border: 3px solid blue;
      }

      .example1 {
         margin-inline-start: 3%;
      }

      .example2 {
         margin-inline-start: 5%;
      }

      .demo-box {
         background-color: #04bf52;
      }
   </style>
</head>

<body>
   <h2>
      CSS margin-inline-start property
   </h2>
   <h4>
      margin-inline-start: 3%
   </h4>
   <div class="container">
      <div class="demo-box props">
         sample box
      </div>
      <div class="example1 props center">
         This box has margin-inline-start: 3% for 
         the inline-start edge of the width of 
         the container.
      </div>
      <div class="demo-box props"> 
      sample box
      </div>
   </div>
   <h4>
      margin-inline-start: 5%
   </h4>
   <div class="container">
      <div class="demo-box props">
         sample box
      </div>
      <div class="example2 props center">
         This box has margin-inline-start: 5% for 
         the inline-start edge of the width of 
         the container.
      </div>
      <div class="demo-box props"> 
         sample box
      </div>
   </div>
</body>

</html>

帶方向的內聯起始邊距屬性

margin-inline-start 屬性可以與direction 屬性結合使用，該屬性確定文字和內聯元素的水平方向。如果 direction 為 ltr，則inline-start 在左側；如果 direction 為 rtl，則inline-start 在右側。以下示例顯示了這些情況。

示例

<!DOCTYPE html>
<html>

<head>
   <style>
      .container {
         height: 200px;
         width: 490px;
         padding: 20px;
      }

      .container>div {
         width: 150px;
         height: 200px;
         float: left;
         box-sizing: border-box;
      }

      .props {
         text-align: center;
         padding: 10px;
      }

      .center {
         background-color: lightblue;
         border: 3px solid blue;
         margin-inline-start: 15px;
      }

      .demo-box {
         background-color: #04bf52;
      }

      .direction-rtl {
         direction: rtl;
      }

      .direction-ltr {
         direction: ltr;
      }
   </style>
</head>

<body>
   <h2>
      CSS margin-inline-start property
   </h2>
   <h4>
      margin-inline-start: 15px; direction: rtl
   </h4>
   <div class="container">
      <div class="demo-box props">
         sample box
      </div>
      <div class="direction-rtl props center">
         This box has margin-inline-start: 15px for 
         inline-start edge with rtl direction.
      </div>
      <div class="demo-box props"> 
         sample box
      </div>
   </div>
   <h4>
      margin-inline-start: 15px; direction: ltr
   </h4>
   <div class="container">
      <div class="demo-box props">
         sample box
      </div>
      <div class="direction-ltr props center">
         This box has margin-inline-start: 15px for 
         inline-start edge with ltr direction.
      </div>
      <div class="demo-box props"> sample box</div>
   </div>
</body>

</html>

帶書寫模式的內聯起始邊距屬性

margin-inline-start 屬性可以與writing-mode 屬性結合使用，該屬性確定文件中文字流的方向和方向。例如，在垂直模式（如 vertical-rl）中，inline-start 為頂部。以下示例顯示了這一點。

示例

<!DOCTYPE html>
<html>

<head>
   <style>
      .container {
         height: 50%;
         width: 50%;
      }

      .container > div {
         writing-mode: vertical-rl;
         block-size: 100%;
         box-sizing: border-box;
      }

      .demo-box {
         background-color: #04bf52;
         inline-size: 20%;
      }

      .main-box {
         background-color: lightblue;
         inline-size: 50%;
         border: solid black 1px;
         margin-inline-start: 30px;
      }
   </style>
</head>

<body>
   <h2>
      CSS margin-inline-start property
   </h2>
   <h4>
      margin-inline-start: 30px; 
      writing-mode: vertical-rl
   </h4>
   <div class="container">
      <div class="demo-box">
         sample box
      </div>
      <div class="main-box">
         <p>
            This box has margin-inline-start: 30px for 
            inline-start edge with writing-mode: vertical-rl;
         </p>
      </div>
      <div class="demo-box">
         sample box
      </div>
   </div>

</body>

</html>

支援的瀏覽器

屬性
margin-inline-start	69.0	79.0	68.0	14.1	56.0

css_properties_reference.htm

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