sample codes

<!DOCTYPE html>

<html lang="en">

<head>

<meta charset="UTF-8">

<meta http-equiv="X-UA-Compatible" content="IE=edge">

<meta name="viewport" content="width=device-width, initial-scale=1.0">

<title>Document</title>

<link href="https://cdn.jsdelivr.net/npm/bootstrap@5.2.2/dist/css/bootstrap.min.css" rel="stylesheet"

integrity="sha384-Zenh87qX5JnK2Jl0vWa8Ck2rdkQ2Bzep5IDxbcnCeuOxjzrPF/et3URy9Bv1WTRi" crossorigin="anonymous">

<style>

.h-10{ height: 10rem;}

</style>

</head>

<div class="container">

<div class="row">

<div class="col">

<div class="bg-primary text-white p-3">

columns

</div>

</div>

<div class="col">

<div class="bg-primary text-white p-3">

columns

</div>

</div>

<div class="col">

<div class="bg-primary text-white p-3">

columns

</div>

</div>

</div>

</div>

<script src="https://cdn.jsdelivr.net/npm/bootstrap@5.2.2/dist/js/bootstrap.bundle.min.js"

integrity="sha384-OERcA2EqjJCMA+/3y+gxIOqMEjwtxJY7qPCqsdltbNJuaOe923+mo//f6V8Qbsw3"

crossorigin="anonymous"></script>

</body>

</html>

//=====================================================================================================

//column vertical alignment

<div class="container">

<div class="row h-10 bg-info mb-3">

<div class="col align-self-start">

<div class="bg-primary text-white p-3">

Column

</div>

</div>

<div class="col align-self-center">

<div class="bg-primary text-white p-3">

Column

</div>

</div>

<div class="col align-self-end">

<div class="bg-primary text-white p-3">

Column

</div>

</div>

</div>

<div class="row h-10 bg-info mb-3 align-items-center"> //start

<div class="col">

<div class="bg-primary text-white p-3">

Column

</div>

</div>

<div class="col">

<div class="bg-primary text-white p-3">

Column

</div>

</div>

<div class="col">

<div class="bg-primary text-white p-3">

Column

</div>

</div>

</div>

<div class="row h-10 bg-info mb-3 align-items-end">

<div class="col">

<div class="bg-primary text-white p-3">

Column

</div>

</div>

<div class="col">

<div class="bg-primary text-white p-3">

Column

</div>

</div>

<div class="col">

<div class="bg-primary text-white p-3">

Column

</div>

</div>

</div>

</div>

//====================================================================

//column horizontal alignment

<div class="container">

<div class="row h-10 bg-warning justify-content-start mb-3">

<div class="col-md-2">

<div class="bg-primary p-3 text-white mb-3">

Columns

</div>

</div>

<div class="col-md-2">

<div class="bg-primary p-3 text-white mb-3">

Columns

</div>

</div>

</div>

<div class="row h-10 bg-warning justify-content-center mb-3">

<div class="col-md-2">

<div class="bg-primary p-3 text-white mb-3">

Columns

</div>

</div>

<div class="col-md-2">

<div class="bg-primary p-3 text-white mb-3">

Columns

</div>

</div>

</div>

<div class="row h-10 bg-warning justify-content-end mb-3">

<div class="col-md-2">

<div class="bg-primary p-3 text-white mb-3">

Columns

</div>

</div>

<div class="col-md-2">

<div class="bg-primary p-3 text-white mb-3">

Columns

</div>

</div>

</div>

</div>

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