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HTML Style alignItems用法及代碼示例


DOM樣式alignItems屬性用於設置或返回彈性容器中項目的默認對齊方式。

用法:

  • 獲取alignItems屬性
    object.style.alignItems
  • 設置alignItems屬性
    object.style.alignItems = "stretch|center|flex-start|flex-end|
baseline|initial|inherit"

屬性值：


  • stretch:這用於拉伸物品以適合容器。這是默認值。
  • center:這用於使容器中的項目居中。
  • flex-start：這用於將項目放置在容器的開頭。
  • flex-end：這用於將項目放置在容器的末端。
  • baseline:這用於將項目放置在容器的基線。
  • initial:這用於將此屬性設置為其默認值。
  • inherit:這將從其父項繼承該屬性。

使用以下示例解釋這些值：

示例1：使用拉伸值。

<!DOCTYPE html> 
<html lang="en"> 
  
<head> 
    <title>DOM Style alignItems Property</title> 
    <style> 
        .main { 
            width:200px; 
            height:150px; 
            border:solid; 
            display:flex; 
  
            /* setting align-items to center to observe the 
            effect of the stretch value */ 
            align-items:center; 
        } 
    </style> 
</head> 
  
<body> 
    <h1 style="color:green">GeeksforGeeks</h1> 
    <b>DOM Style alignItems Property</b> 
    <p>Click on the button to change the  
       alignItems property to 'stretch'</p> 
    
    <div class="main"> 
        <div style="background-color:lightblue;">  
          Item 1 </div> 
        <div style="background-color:lightgreen;">  
          Item 2 </div> 
        <div style="background-color:lightsalmon;">  
          Item 3 </div> 
        <div style="background-color:lightyellow;">  
          Item 4 </div> 
    </div> 
    
    <button onclick="changePos()"> 
      Change alignItems property 
    </button> 
  
    <script> 
        function changePos() { 
            elem = document.querySelector('.main'); 
  
            // Setting alignItems to stretch 
            elem.style.alignItems = 'stretch'; 
        } 
    </script> 
</body> 
  
</html>

輸出：

  • 按下按鈕之前：
  • 按下按鈕後：

示例2：使用中心值。

<!DOCTYPE html> 
<html lang="en"> 
  
<head> 
    <title>DOM Style alignItems Property</title> 
    <style> 
        .main { 
            width:200px; 
            height:150px; 
            border:solid; 
            display:flex; 
        } 
    </style> 
</head> 
  
<body> 
    <h1 style="color:green">GeeksforGeeks</h1> 
    <b>DOM Style alignItems Property</b> 
    <p>Click on the button to change the  
        alignItems property to 'center'</p> 
    
    <div class="main"> 
        <div style="background-color:lightblue;">  
          Item 1 </div> 
        <div style="background-color:lightgreen;">  
          Item 2 </div> 
        <div style="background-color:lightsalmon;">  
          Item 3 </div> 
        <div style="background-color:lightyellow;">  
          Item 4 </div> 
    </div> 
    
    <button onclick="changePos()"> 
      Change alignItems property 
    </button> 
  
    <script> 
        function changePos() { 
            elem = document.querySelector('.main'); 
  
            // Setting alignItems to center 
            elem.style.alignItems = 'center'; 
        } 
    </script> 
</body> 
  
</html>

輸出：

  • 按下按鈕之前：
  • 按下按鈕後：

示例3：使用flex-start值。

<!DOCTYPE html> 
<html lang="en"> 
  
<head> 
    <title>DOM Style alignItems Property</title> 
    <style> 
        .main { 
            width:200px; 
            height:150px; 
            border:solid; 
            display:flex; 
        } 
    </style> 
</head> 
  
<body> 
    <h1 style="color:green">GeeksforGeeks</h1> 
    <b>DOM Style alignItems Property</b> 
    <p>Click on the button to change the  
       alignItems property to 'flex-start'</p> 
    
    <div class="main"> 
        <div style="background-color:lightblue;">  
          Item 1 </div> 
        <div style="background-color:lightgreen;">  
          Item 2 </div> 
        <div style="background-color:lightsalmon;">  
          Item 3 </div> 
        <div style="background-color:lightyellow;">  
          Item 4 </div> 
    </div> 
    
    <button onclick="changePos()"> 
      Change alignItems property 
    </button> 
  
    <script> 
        function changePos() { 
            elem = document.querySelector('.main'); 
  
            // Setting alignItems to flex-start 
            elem.style.alignItems = 'flex-start'; 
        } 
    </script> 
</body> 
  
</html>

輸出：

  • 按下按鈕之前：
    flex-start-before
  • 按下按鈕後：

示例4：使用flex-end值。

<!DOCTYPE html> 
<html lang="en"> 
  
<head> 
    <title>DOM Style alignItems Property</title> 
    <style> 
        .main { 
            width:200px; 
            height:150px; 
            border:solid; 
            display:flex; 
        } 
    </style> 
</head> 
  
<body> 
    <h1 style="color:green">GeeksforGeeks</h1> 
    <b>DOM Style alignItems Property</b> 
    <p>Click on the button to change the  
       alignItems property to 'flex-end'</p> 
    
    <div class="main"> 
        <div style="background-color:lightblue;">  
          Item 1 </div> 
        <div style="background-color:lightgreen;">  
          Item 2 </div> 
        <div style="background-color:lightsalmon;">  
          Item 3 </div> 
        <div style="background-color:lightyellow;">  
          Item 4 </div> 
    </div> 
    
    <button onclick="changePos()"> 
      Change alignItems property 
    </button> 
  
    <script> 
        function changePos() { 
            elem = document.querySelector('.main'); 
  
            // Setting alignItems to flex-end 
            elem.style.alignItems = 'flex-end'; 
        } 
    </script> 
</body> 
  
</html>

輸出：

  • 按下按鈕之前：
    flex-end-before
  • 按下按鈕後：

示例5：使用基線值。


<!DOCTYPE html> 
<html lang="en"> 
  
<head> 
    <title>DOM Style alignItems Property</title> 
    <style> 
        .main { 
            width:200px; 
            height:150px; 
            border:solid; 
            display:flex; 
        } 
    </style> 
</head> 
  
<body> 
    <h1 style="color:green">GeeksforGeeks</h1> 
    <b>DOM Style alignItems Property</b> 
    <p>Click on the button to change the  
      alignItems property to 'baseline'</p> 
    
    <div class="main"> 
        <div style="background-color:lightblue;"> 
          Item 1 </div> 
        <div style="background-color:lightgreen;"> 
          Item 2 </div> 
        <div style="background-color:lightsalmon;"> 
          Item 3 </div> 
        <div style="background-color:lightyellow;"> 
          Item 4 </div> 
    </div> 
    
    <button onclick="changePos()"> 
      Change alignItems property 
    </button> 
  
    <script> 
        function changePos() { 
            elem = document.querySelector('.main'); 
  
            // Setting alignItems to baseline 
            elem.style.alignItems = 'baseline'; 
        } 
    </script> 
</body> 
  
</html>

輸出：

  • 按下按鈕之前：
    baseline-before
  • 按下按鈕後：

示例6：使用初始值。這會將屬性設置為默認值。

<!DOCTYPE html> 
<html lang="en"> 
  
<head> 
    <title>DOM Style alignItems Property</title> 
    <style> 
        .main { 
            width:200px; 
            height:150px; 
            border:solid; 
            display:flex; 
            /* setting align-items to center  
             to observe the effect of the  
             initial value */ 
            align-items:center; 
        } 
    </style> 
</head> 
  
<body> 
    <h1 style="color:green">GeeksforGeeks</h1> 
    <b>DOM Style alignItems Property</b> 
    <p>Click on the button to change the  
      alignItems property to 'initial'</p> 
    
    <div class="main"> 
        <div style="background-color:lightblue;">  
          Item 1 </div> 
        <div style="background-color:lightgreen;">  
          Item 2 </div> 
        <div style="background-color:lightsalmon;">  
          Item 3 </div> 
        <div style="background-color:lightyellow;">  
          Item 4 </div> 
    </div> 
    
    <button onclick="changePos()"> 
      Change alignItems property 
    </button> 
  
    <script> 
        function changePos() { 
            elem = document.querySelector('.main'); 
  
            // Setting alignItems to initial 
            elem.style.alignItems = 'initial'; 
        } 
    </script> 
</body> 
  
</html>

輸出：

  • 按下按鈕之前：
  • 按下按鈕後：

示例7：使用繼承值。這將從其父元素繼承位置。

<!DOCTYPE html> 
<html lang="en"> 
  
<head> 
    <title>DOM Style alignItems Property</title> 
    <style> 
        .main { 
            width:200px; 
            height:150px; 
            border:solid; 
            display:flex; 
        } 
          
        #parent { 
            /* Setting the parent div's  
              align-items to flex-end */ 
            align-items:flex-end; 
        } 
    </style> 
</head> 
  
<body> 
    <h1 style="color:green">GeeksforGeeks</h1> 
    <b>DOM Style alignItems Property</b> 
    <p>Click on the button to change the  
       alignItems property to 'inherit'</p> 
    
    <div id="parent"> 
        <div class="main"> 
            <div style="background-color:lightblue;">  
              Item 1 </div> 
            <div style="background-color:lightgreen;">  
              Item 2 </div> 
            <div style="background-color:lightsalmon;">  
              Item 3 </div> 
            <div style="background-color:lightyellow;">  
              Item 4 </div> 
        </div> 
    </div> 
  
    <button onclick="changePos()"> 
      Change alignItems property 
    </button> 
  
    <script> 
        function changePos() { 
            elem = document.querySelector('.main'); 
  
            // Setting alignItems to inherit from parent div 
            elem.style.alignItems = 'inherit'; 
        } 
    </script> 
</body> 
  
</html>

輸出：

  • 按下按鈕之前：
    inherit-before
  • 按下按鈕後：

支持的瀏覽器：alignItems屬性支持的瀏覽器如下：

  • chrome 21.0
  • Internet Explorer 11.0
  • Firefox 20.0
  • Opera 12.1
  • Safari 7.0


相關用法


注：本文由純淨天空篩選整理自sayantanm19大神的英文原創作品 HTML | DOM Style alignItems Property。非經特殊聲明，原始代碼版權歸原作者所有，本譯文未經允許或授權，請勿轉載或複製。