Responsives Webdesign

@media screen and (min-width: 480px) {
     /* CSS */
}

@media only screen and (min-width: 200px) and (max-width: 767px)  {
    /* CSS */   
}

@media only screen and (max-width: 769px) {
     /* CSS */
}

@media screen and (min-device-width: 481px) and (max-device-width: 768px) { 
    /* CSS */
}