SO-BS-example1

https://stackoverflow.com/questions/50995780/bootstrap-4-grid-not-staying-side-by-side

by rushabhpasad

HTML

<script src="//code.jquery.com/jquery-3.3.1.slim.min.js"></script>
<link rel="stylesheet" href="//stackpath.bootstrapcdn.com/bootstrap/4.1.0/css/bootstrap.min.css">
<script src="//cdnjs.cloudflare.com/ajax/libs/popper.js/1.14.0/umd/popper.min.js"></script>
<script src="//stackpath.bootstrapcdn.com/bootstrap/4.1.0/js/bootstrap.min.js"></script>
<link rel="stylesheet" href="https://stackpath.bootstrapcdn.com/font-awesome/4.7.0/css/font-awesome.min.css">
<div class="notice">
   <div class="container">
      <div class="row justify-content-center">
         <div class="col-lg-8">
            <h2>Notice Board</h2>
            <div class="row">
               <div class="col-lg-6">
                  <div class="notice_date">
                     23 June <br>2018
                  </div>
               </div>
               <!-- end of first col-lg-6 -->
               <div class="col-lg-6">
                  <div class="notice_contents">
                     <h4><a href="">Lorem ipsum dolor sit amet, consectetur adipisicing elit.</a></h4>
                  </div>
               </div>
               <!-- end of second col-lg-6 -->
            </div>
         </div>
         <!-- end of col-lg-8 -->
      </div>
   </div>
</div>