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HTML Style alignItems用法及代码示例


DOM样式alignItems属性用于设置或返回弹性容器中项目的默认对齐方式。

用法:

  • 获取alignItems属性
    object.style.alignItems
  • 设置alignItems属性
    object.style.alignItems = "stretch|center|flex-start|flex-end|
baseline|initial|inherit"

属性值：


  • stretch:这用于拉伸物品以适合容器。这是默认值。
  • center:这用于使容器中的项目居中。
  • flex-start：这用于将项目放置在容器的开头。
  • flex-end：这用于将项目放置在容器的末端。
  • baseline:这用于将项目放置在容器的基线。
  • initial:这用于将此属性设置为其默认值。
  • inherit:这将从其父项继承该属性。

使用以下示例解释这些值：

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>

输出：

  • 按下按钮之前：
  • 按下按钮后：

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>

输出：

  • 按下按钮之前：
  • 按下按钮后：

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>

输出：

  • 按下按钮之前：
    flex-start-before
  • 按下按钮后：

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>

输出：

  • 按下按钮之前：
    flex-end-before
  • 按下按钮后：

示例5：使用基线值。


<!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>

输出：

  • 按下按钮之前：
    baseline-before
  • 按下按钮后：

示例6：使用初始值。这会将属性设置为默认值。

<!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>

输出：

  • 按下按钮之前：
  • 按下按钮后：

示例7：使用继承值。这将从其父元素继承位置。

<!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>

输出：

  • 按下按钮之前：
    inherit-before
  • 按下按钮后：

支持的浏览器：alignItems属性支持的浏览器如下：

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


相关用法


注：本文由纯净天空筛选整理自sayantanm19大神的英文原创作品 HTML | DOM Style alignItems Property。非经特殊声明，原始代码版权归原作者所有，本译文未经允许或授权，请勿转载或复制。