I'm using Internet Explorer's Developer tools to try to debug an issue I'm having with a web page.
When I highlight elements the CSS comes up on the right hand side but I don't seem to be able to add new rules or properly edit the existing CSS.
Trying to add a "display:block" property to a class, I tried to edit an existing rule that didn't matter (background-color:transparent) but as soon as I change it the rule disappears!
Am I missing a trick here somewhere?