Looks like your form is in 'Flow layout' mode. You may need to shift into 'Grid layout'.
By default, the Web Forms page you are working with is in grid layout mode. In this mode, you can drag controls around the page and position them using absolute (x and y) coordinates. (Also, the controls are positioned using tables.)
If you prefer, you can work in flow layout mode, which is like a traditional HTML page — items are positioned from top to bottom.
Each view has advantages: grid mode makes it easy to position items. In flow mode, it is easier to add static text. For details, see
Positioning HTML Elements in Design View.[
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