How can I style a black button with white edges on a Brooklyn theme homepage?

[samuelhanxx]

Can anybody help me ? how to style a simple black button with white lines on edges and adding it to the homepage ? i use brooklyn theme

www.doublenegative333.eu

pass: yokay

[DevsMedia]

Hi, we can help you. Please contact with us

[samuelhanxx]

hey, can u help me ? why i have this empty space on my page ?