Accessibility: Linked images using CSS class "img-responsive" do not have focus indicator

[aduth]

For linked images where the image is assigned CSS class img-responsive, there is no visible indication when the link is focused.

Steps to Reproduce:

1. Navigate to https://coe.gsa.gov/about/approach-team-structure.html
2. Tab to navigate to the linked image under "How We Work"

Expected: Focus should be visible.
Actual: Focus is not visible.

WCAG Success Criteria (AA): 2.4.7: Focus Visible

Relevant technique: CSS C15: Using CSS to change the presentation of a user interface component when it receives focus

Relevant failure: F78: Failure of Success Criterion 2.4.7 due to styling element outlines and borders in a way that removes or renders non-visible the visual focus indicator

Remediation guidance:

Focus styling appears to be absent due to assignment of display: block on images of class name img-responsive.