Why cols go under each other when they are in the same row?

HTML-CSS
1 
<!DOCTYPE html>
<html>
<head>
	<link rel="stylesheet" href="bootstrap.css">
	</head>
	<body style="background-color: #FF69B4">
<div  class="container-xxl">
    <nav class="navbar navbar-expand-lg navbar-dark bg-dark ">
    <a class="navbar-brand" href="#">
    <img src="unnamed.jpg" width="100px;" style=" border-radius: 50%; width: 40px; height: 40px!important;"></a>

  <button class="navbar-toggler" type="button" data-toggle="collapse" data-target="#navbarSupportedContent" aria-controls="navbarSupportedContent" aria-expanded="false" aria-label="Toggle navigation">
    <span class="navbar-toggler-icon"></span>
  </button>

  <div class="collapse navbar-collapse" id="navbarSupportedContent">
    <ul class="navbar-nav mr-auto">
      <li class="nav-item active">
        <a class="nav-link" href="#">Clover <span class="sr-only">(current)</span></a>
      </li>
      <li class="nav-item">
        <a class="nav-link" href="#">Sam</a>
      </li>
     
      </li>
      <li class="nav-item">
        <a class="nav-link" href="#">Alex</a>
      </li>
    </ul>
    
  </div>

</nav>


<div class="row" >
	
<div  id="col-sm-4">
aaaa
</div>
<div id="col-sm-4">
kkkk
</div>
<div id="col-sm-4">
</div>


</div>
		<div class="row">
  
<div id="col-lg-4">
</div>
<div id="col-lg-4">
</div>
<div id="col-lg-4">
</div>

</div>

</div>
</div>


	</body>
</html>

I would like them to be next to each other.Thank you!

2

are you sure you wanted to use id? ids must be unique, you can’t have more than one elemnt with the same id

3

You are right, I changed it to class and it’s working now. Thank you!

4

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