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                  <h6 class="m-0 font-weight-bold text-primary">Height of Progress Bars</h6>
                </div>
                <div class="card-body">
                  <p>We only set a <code>height</code> value on the <code>.progress</code>, so if you
                    change that value the inner <code>.progress-bar</code> will automatically resize
                    accordingly.</p>
                  <p><b>with</b> <code>height: 2px;</code></p>
                  <div clas