body {  
    /*background winter*/
    background: #c2c6d2 url(../../img/background/bg-winter.jpg) center 0% no-repeat;
    background-size: contain;
}

@media (max-width: 989px) {
    body{
        background: #c2c6d2 url(../../img/background/bg-winter-max989.jpg) center 0% no-repeat;
    }
}

@media (max-width: 659px) {
    body{
        background: #c2c6d2 url(../../img/background/bg-winter-max659.jpg) center 0% no-repeat; 
    }
}