Using Attribute Selectors we don't necessarily need the Class selectors here at all.
You have a few options:
1. If data-uid never changes:
[data-uid="eRDhfBAS"]
2. If the
href link never changes:
[href="/account/signup"]
3. If the
alt text never changes:
[alt="Create an Account"]
4. If the data-
tl-id never changes:
[data-tl-id="header-GlobalAccountFlyout-flyout-link-1"]
If there may be other elements with those same attributes and values, simply include your Class selectors as well. For example:
.header-GlobalAccountFlyout-link.display-block[href="/account/signup"]
Or you could combine some of the above attribute selectors...
[href="/account/signup"][alt="Create an Account"]