Widget tile padding

Can you please help me figure out how to reduce the sidebar widget title padding for the “5 Things You Can do” text widget. Here is my code: (I’m using the two_third element because I want the buttons to all be the same size but I think it is causing my padding issue.
[av_two_third]

[av_button label='Join our Newsletter' link='page,71' link_target='' size='large' position='center' icon_select='no' icon='ue800' font='entypo-fontello' color='theme-color' custom_bg='#444444' custom_font='#ffffff' custom_class='']

[av_button label='Learn about Dr. Kumar' link='page,29' link_target='' size='large' position='center' icon_select='no' icon='ue800' font='entypo-fontello' color='theme-color' custom_bg='#444444' custom_font='#ffffff' custom_class='']

[av_button label='Learn about Dr. Kumar’s Book' link='page,73' link_target='' size='large' position='center' icon_select='no' icon='ue800' font='entypo-fontello' color='theme-color' custom_bg='#444444' custom_font='#ffffff' custom_class='']

[av_button label='Learn about Ommani Center Services' link='page,30' link_target='' size='large' position='center' icon_select='no' icon='ue800' font='entypo-fontello' color='theme-color' custom_bg='#444444' custom_font='#ffffff' custom_class='']

[av_button label='Learn about Ommani Center Practitioners' link='page,42' link_target='' size='large' position='center' icon_select='no' icon='ue800' font='entypo-fontello' color='theme-color' custom_bg='#444444' custom_font='#ffffff' custom_class='']

[/av_two_third]