       const viewportContainer = document.getElementById('viewports');
        const viewportDiv = document.createElement('div');
        viewportDiv.classList = 'disable-selection noIbar'
        viewportDiv.style = 'width:200px;height:200px;position:relative;color: white;display:inline-block;border-style:solid;border-color:black;'
        viewportDiv.onmousedown = 'return false;'
        const canvasDiv = document.createElement('div');
        canvasDiv.style = 'width:200px;height:200px;';

        viewpo