approved reject btn color change

 CASE WHEN DDI.ACTIVE = 'Y' 
        THEN '<button><span class="fa fa-check-circle" aria-hidden="true"></span></button>' 
        WHEN REJECTED = 'REJECTED' 
        THEN '<button><span style="color:red" aria-hidden="true"  class="fa fa-times-circle"></span></button>' 
        WHEN MARKETING_STATUS = 'MARKETING APPROVED' THEN 'APPROVE'
        END APPROVAL,
        CASE WHEN   DDI.ACTIVE = 'Y'
        THEN '<button><span style="color:red" aria-hidden="true" class="fa fa-times-circle"></span></button>' 
        WHEN REJECTED = 'REJECTED' THEN '<button><span class="fa fa-check-circle" aria-hidden="true"></span></button>' 
        WHEN MARKETING_STATUS = 'MARKETING APPROVED' THEN  'REJECT'
        END REJECTED,