Widgets can be easily dragged and positioned where you like. The grid lines that show up when clicking on and dragging a widget will help you achieve pixel-perfect alignment.
Arranging multiple widgets
You can also move multiple widgets at a time. To do this, click, drag and select the widgets you want to move. You can then move those widgets around together.
Once you're done, click and drag your mouse over an empty space on the dashboard or over a single widget to deselect the widgets.