#buttons #button-about{background-image: url('images/button_about.jpg');width:100px;}
#buttons #button-portfolio{background-image: url('images/button_portfolio.jpg');width:100px;}
#buttons #button-other{background-image: url('images/button_other.jpg');width:85px;}
#buttons #button-contact{background-image: url('images/button_contact.jpg');width:100px;}
#buttons #button-services{background-image: url('images/button_services.jpg');width:90px;}