У вашего броузера проблема в совместимости с HTML5
In this 2-minute YouTube video, you explore the features available to you under the Power Tools Ribbon. The Power Tools Ribbon enables speedy diagramming of intersection, structures, signs and bodies. These can all be placed with a click and modified in the tolls panel. Tabs available to you under the Power Tool Ribbon include the Crash tab, CSI tab, and the form tag.