Bootstrap Grid Support for 4K monitor

I have been trying to render to 4k resolution, but unable to get the pdf to full the grid

the below work perfectly for 2560x1440 resolution

<div class="col-md-4 col-lg-4 col-xl-4 h-100">      <embed class="pdf_viewer" src="~/file/@a.BildUrl1" type="application/pdf">  </div>  <div class="col-md-4 col-lg-4 col-xl-4 h-100">      <embed class="pdf_viewer" src="~/file/@a.BildUrl2" type="application/pdf">  </div>  <div class="col-md-4 col-lg-4 col-xl-4 h-100">      <embed class="pdf_viewer" src="~/file/@a.BildUrl3" type="application/pdf">  </div>  

.pdf_viewer{        width: 100%;      height: calc(100% - 30px);      margin-bottom: 20px;  }  

Is there any way to expand the grid system for 4k display?

https://stackoverflow.com/questions/67303325/bootstrap-grid-support-for-4k-monitor April 28, 2021 at 11:35PM