Bootstrap 5布局的列的大小

Bootstrap 5 Layout Column sizing是用来设置列元素的宽度。为了创建等宽的列，可以使用.col内的.row类。我们也可以使用类的子集来设置不平等地分割列。

布局列的大小使用类：

.row。该类用于为一个布局创建行。
.col:该类用于为一个布局创建列。
.col-\*:该类用于设置布局的列的大小。

语法:

<div class="row">
    <div class="col">
        ...
    </div>
    ...
</div>

例子1：在这个例子中，我们将使用.row和.col类创建2行和1列。

<!DOCTYPE html>
<html>
  
<head>
    <title>Bootstrap 5 Layout Column Sizing</title>
    <link href="https://cdn.jsdelivr.net/npm/bootstrap@5.0.2/dist/css/bootstrap.min.css" 
        rel="stylesheet"
        integrity="sha384-EVSTQN3/azprG1Anm3QDgpJLIm9Nao0Yz1ztcQTwFspd3yD65VohhpuuCOmLASjC" 
        crossorigin="anonymous">
    <script src="https://cdn.jsdelivr.net/npm/bootstrap@5.0.2/dist/js/bootstrap.bundle.min.js"
        integrity="sha384-MrcW6ZMFYlzcLA8Nl+NtUVF0sA7MsXsP1UyJoMp4YLEuNSfAP+JcXn/tWtIaxVXM" 
        crossorigin="anonymous">
    </script>
</head>
  
<body>
    <div class="container text-center">
        <h1 class="text-success">
            GeeksforGeeks
        </h1>
  
        <h2>Bootstrap 5 Layout Column Sizing</h2>
  
        <div class="row">
            <div class="col">
                <input type="text" class="form-control" 
                    placeholder="Username/Email"
                    aria-label="Username/Email">
            </div>
        </div>
        <br>
  
        <div class="row">
            <div class="col">
                <input type="password" class="form-control" 
                    placeholder="Password"
                    aria-label="Password">
            </div>
        </div>
    </div>
</body>
  
</html>

输出:

Bootstrap 5布局的列的大小

例子2：在这个例子中，我们将使用.row、.col和.col-*类创建3行和2列。

<!DOCTYPE html>
<html>
  
<head>
    <title>Bootstrap 5 Layout Column Sizing</title>
    <link href="https://cdn.jsdelivr.net/npm/bootstrap@5.0.2/dist/css/bootstrap.min.css" 
        rel="stylesheet"
        integrity="sha384-EVSTQN3/azprG1Anm3QDgpJLIm9Nao0Yz1ztcQTwFspd3yD65VohhpuuCOmLASjC" 
        crossorigin="anonymous">
    <script src="https://cdn.jsdelivr.net/npm/bootstrap@5.0.2/dist/js/bootstrap.bundle.min.js"
        integrity="sha384-MrcW6ZMFYlzcLA8Nl+NtUVF0sA7MsXsP1UyJoMp4YLEuNSfAP+JcXn/tWtIaxVXM" 
        crossorigin="anonymous">
    </script>
</head>
  
<body>
    <div class="container text-center">
        <h1 class="text-success">
            GeeksforGeeks
        </h1>
  
        <h2>Bootstrap 5 Layout Column Sizing</h2>
  
        <div class="row">
            <div class="col-sm-6">
                <input type="text" class="form-control" 
                    placeholder="First Name">
            </div>
            <div class="col-sm-6">
                <input type="text" class="form-control" 
                    placeholder="Last Name">
            </div>
        </div>
        <br>
  
        <div class="row">
            <div class="col-sm-6">
                <input type="email" class="form-control" 
                    placeholder="Email Id">
            </div>
            <div class="col-sm-6">
                <input type="tel" class="form-control" 
                    placeholder="Mobile">
            </div>
        </div>
        <br>
  
        <div class="row">
            <div class="col-sm-8">
                <input type="text" class="form-control" 
                    placeholder="Address">
            </div>
            <div class="col-sm">
                <input type="text" class="form-control"
                    placeholder="Zip Code">
            </div>
        </div>
    </div>
</body>
  
</html>

输出:

Bootstrap 5布局的列的大小