.bg_home{background-image:url(../img/parallax/home-parallax-bg.jpg);}
.bg_about{background-image:url(../img/parallax/about-us-parallax-bg.jpg);}
.bg_for_seniors{background-image:url(../img/parallax/for-seniors-parallax-bg.jpg);}
.bg_preventative_care{background-image:url(../img/parallax/preventative-care-parallax-bg.jpg);}
.bg_prosthodontics{background-image:url(../img/parallax/prosthodontics-parallax-bg.jpg);}
.bg_restorative_care{background-image:url(../img/parallax/restorative-care-parallax-bg.jpg);}
.bg_retirees{background-image:url(../img/parallax/dental-care-for-seniors-parallax-bg.jpg);}
.bg_onsite_care{background-image:url(../img/parallax/onsite-care-parallax-bg.jpg);}

.bg_{background-image:url(../img/parallax/-parallax-bg.jpg);}


@media only screen and (min-device-width : 768px) and (max-device-width : 1024px) {

.bg_home{background-image:url(../img/parallax/home-parallax-bg-tb.jpg);}
.bg_about{background-image:url(../img/parallax/about-us-parallax-bg-tb.jpg);}
.bg_for_seniors{background-image:url(../img/parallax/for-seniors-parallax-bg-tb.jpg);}
.bg_preventative_care{background-image:url(../img/parallax/preventative-care-parallax-bg-tb.jpg);}
.bg_prosthodontics{background-image:url(../img/parallax/prosthodontics-parallax-bg-tb.jpg);}
.bg_restorative_care{background-image:url(../img/parallax/restorative-care-parallax-bg-tb.jpg);}
.bg_retirees{background-image:url(../img/parallax/dental-care-for-seniors-parallax-bg-tb.jpg);}
.bg_onsite_care{background-image:url(../img/parallax/onsite-care-parallax-bg-tb.jpg);}

.bg_{background-image:url(../img/parallax/-parallax-bg-tb.jpg);}

}

@media only screen and (min-device-width : 300px) and (max-device-width : 450px) and (orientation: portrait) {

.bg_home{background-image:url(../img/parallax/home-parallax-bg-sp.jpg);}
.bg_about{background-image:url(../img/parallax/about-us-parallax-bg-sp.jpg);}
.bg_for_seniors{background-image:url(../img/parallax/for-seniors-parallax-bg-sp.jpg);}
.bg_preventative_care{background-image:url(../img/parallax/preventative-care-parallax-bg-sp.jpg);}
.bg_prosthodontics{background-image:url(../img/parallax/prosthodontics-parallax-bg-sp.jpg);}
.bg_restorative_care{background-image:url(../img/parallax/restorative-care-parallax-bg-sp.jpg);}
.bg_retirees{background-image:url(../img/parallax/dental-care-for-seniors-parallax-bg-sp.jpg);}
.bg_onsite_care{background-image:url(../img/parallax/onsite-care-parallax-bg-sp.jpg);}

.bg_{background-image:url(../img/parallax/-parallax-bg-sp.jpg);}

}