# anchor1, anchor2 parameters (skin)

Source: https://ref.dm-lang.org/skin/param/anchor

### Applies to
> [All](https://ref.dm-lang.org/skin/control/index.md) (except [Main](https://ref.dm-lang.org/skin/control/main.md))

### Format
- `none`
- `*x*,*y*`


### Default value
> `none`

Anchors the control within the window or pane. If the anchor is not `none`, it is expressed as pecentages of the container's width and height. For example, an anchor of 100,100 means that the X and Y position are tied to the lower right of the container, and 50,0 is tied to the top center.

Setting only `anchor1` will control the position of the control but won't affect its size.

Setting `anchor2` as well will allow you to stretch the control as the container's size changes. You can think of this `anchor1` controlling the top left corner, and `anchor2` the bottom right corner.

### See also
- [pos parameter](https://ref.dm-lang.org/skin/param/pos.md)
- [size parameter](https://ref.dm-lang.org/skin/param/size.md)