*{box-sizing:border-box;font-family:roboto,sans-serif}html{display:flex;flex-direction:column;justify-content:center;align-items:center;overflow:hidden;height:100%;width:100%;box-sizing:border-box}body{width:100%;height:100%;margin:0;padding:0;overflow:hidden}.tool_frame{padding:5px}.tool_body{padding:3px}