In Careers on the main page, when one moves the mouse on or off an image in the explore cities section the text of the link itself changes its style several times. Furthermore all links of cities "after" the hovered city do so and all the text in the right column.
City 0 | City 1 | City 2 City 3 | City 4 | City 5
"After" in this case means that if you, e.g., hover City 2, the link of City 2 and all cities after City 2 (so 3-5) change their style several times.
I use Safari 7.1 on Mac OS X Mavericks (10.9.5), but did not test with other browsers, so it may be browser specific.
It is just a minor and design/style bug, but it is quite weird that this happens and does not look right.
The problem also occurs in Safari 8 on Yosemite: