# Change Property

The Change Property action lets you change CSS properties of any element in your HTML. CSS properties are not the same as Attributes, where attributes let you change the HREF of a link, or the SRC of an IMG, CSS properties let you change the styling information of an element such as `margin-left` or `font-family`.

A simple example is to create a Change Property action, and add a property with the '+' button. Select 'top' as the property and enter '100', as the value. On execution of the action, the selected element will move to 100 pixels from the top of the page.