Attachment macro causes dialog2 in fullscreen to be pushed down

Whenever an attachment macro exists on the page the following css gets added and impacts my macro when it opens fullscreen

.aui-dialog2.aui-layer {
    position: fixed;
    top: 169px;
    overflow: visible;

The top:169px is overriding the top:0px from my macro. Is there a way to fix this as the div being affected is the parent to the iframe that my macro loads in