iFrame Scheduler customization

[Mirco]

I have 2 pages both with an iframe with the scheduler and into one of this 2 iframe I would change the color of the "disabled event".
I have done it using this CSS code:

Code:

.view-frame .content .tbl-events tbody tr.warning td {
  background-color: #ff0000;
}

the problem with this code is that it change the color of both iframes

is there a way to change the color of only one iframe?

Thanks