In Delphi for .Net Web projects, the design view editing surface offers two ways to position web elements (web controls), flow layout and absolute layout.
By default, when you drop web controls from the Tool Palette onto a web form, the controls are positioned next to each other.
In order to "freely" move web controls on a web form, with the component selected press the button on the toolbar above the design view with the "absolute position" hint text.
This will add style="position:absolute" as an attribute to the web control in the aspx view.
Note: if you use double-click to drop a web control onto a web form, a control will always use relative positioning ("stick to the closest"). If you drag a control from the Tool Palette, absolute positioning is default ("move as you whish").