Your CSS file has this error:
.mp_advert1 h3:before {
background:url(../images/lightbulb.png) no-repeat;
}
} /* <--- this should not be there */
.mp_advert2 h3:before {
content: "\e14";
}
.mp_advert3 h3:before {
content: "\e027";
}
Please check your CSS file carefully.
Thanks