.JaugeRouge
{
    background-image: url(../img/button_red_border.gif); 
    background-repeat: repeat-x;
 }
.JaugeBleu
{
    background-image: url(../img/button_blue_border.gif); 
    background-repeat: repeat-x;
 }
 .JaugeVert
{
    background-image: url(../img/button_green_border.gif); 
    background-repeat: repeat-x;
 }