Backport fix styles for button as link :visited when :active and :focus for v9.6.4#1472

colinrotherham merged 3 commits into

support/9.xnhsuk/nhsuk-frontend:support/9.xfrom

v9-fix-button-visited-bug-1372nhsuk/nhsuk-frontend:v9-fix-button-visited-bug-1372Copy head branch name to clipboard