/*視差背景*/
    
    #web2{
        background: #222 url(../image/bg/paralax1.jpg) no-repeat fixed;/*50% 0 no-repeat fixed;*/
        height: 170px; 
        margin: 0 auto;
        padding: 0;
          /*background-size: 100%;*/
        /*-moz-background-size: cover;
        background-size: cover;*/
        -moz-background-size: cover;
        background-size: cover;
    }

    #web4{
        background:#222 url(../image/bg/paralax2.jpg)  center center  no-repeat fixed;
        height: 170px; 
        padding: 0px 0 0 0; 
        -moz-background-size: cover;
        background-size: cover;
    }

   
@media (min-width: 1000px) {
    #web2{ height: 280px; }
	#web4{ height: 280px; }
}

@media (min-width: 1200px) {
    #web2{ height: 330px; }
    #web4{ height: 330px; }
}