<div class="alert primary">
              This is a Simple Primary Alert Check it out!
            </div>
            <div class="alert warning">
              This is a Simple Warning Alert Check it out!
            </div>
            <div class="alert success">
              This is a Simple success Alert Check it out!
            </div>
            <div class="alert dark">
              This is a Simple dark color Alert Check it out!
            </div>