<style>
            #info-box .box-content {min-height:580px; width:800px; border: 0px solid green;}
            #info-box .box-content .elframe {height: 2450px;}
    
            @media (min-width: 992px) { 
                #info-box .box-content .elframe {height: 580px;}
            }

          </style>

          <div id="info-box">
            <div class="box-content>
              <iframe 
                src="https://fe-150.beomi.com/iframe.html"
                name="iframe_fes_interactive" 
                class="elframe" 
                id="iframe_fes_interactive" 
                width="100%" 
                frameborders="0" 
                frameborder="0" 
                scrolling="no" 
                marginwidth="0" 
                marginheight="0" 
                style="width: 100%; padding: 0px; margin: 0px; border: none; background: transparent;">
              </iframe>
            </div>
          </div>