You are applying the class .button to these elements, but that class is already defined in the Graphene style sheet and is used for “Read More” buttons. Thus, your social buttons are looking like “Read More” buttons. You need to delete that class from the code you entered for the social buttons.
This free Support Forum relies on contributions from our support staffs and fellow Graphene themes users. While we endeavour to provide adequate and timely support, due to its voluntary nature responses are not guaranteed and may be delayed.
If you require urgent assistance, you may like to consider our Priority Support option.