#navigation #btn1 strong { background-image:url(../img/btnHome.gif); width:44px; }
#navigation #btn2 strong { background-image:url(../img/btnActueel.gif); width:74px; }
#navigation #btn3 strong { background-image:url(../img/btnProject.gif); width:68px; }
#navigation #btn4 strong { background-image:url(../img/btnHelpons.gif); width:75px; }
#navigation #btn5 strong { background-image:url(../img/btnBedankt.gif); width:74px; }
#navigation #btn6 strong { background-image:url(../img/btnOpdehoogte.gif); width:112px; }
#navigation #btn7 strong { background-image:url(../img/btnOver.gif); width:44px; }
#navigation #btn8 strong { background-image:url(../img/btnFAQ.gif); width:46px; }