@lech

Yes you can use media queries like this,

@media only screen and (max-width : 1200px) {

}

@media only screen and (max-width : 979px) {

}

@media only screen and (max-width : 767px) {

}

@media only screen and (max-width : 480px) {

}

@media only screen and (max-width : 320px) {

}

You can find them at the bottom of your style.css file.