Convert String

Hi, i have this: .bpb-p12-mob-body { position: absolute;height: 100%;width: 100%;height:100%width:100%;background-size:800px 100%;} .bpb-p12-mob-image { font-size: 25px;text-align: center;margin: 20px 0;color:red;height:30%;width:30%;} .bpb-p12-mob-body-text { font-size: 18px;margin:-130px 10px 0 60px;color:#fff;width:70%;float:right;font-family:sans-serif;} .bpb-p12-mob-text { color:#fff;} .bpb-p12a-mob-text { font-size: 25px;text-align: center;margin: 10px 0;font-family:serif;} AND I need to converted into this: .temp_size568 .bpb-p12-mob-body { position: absolute;height: 100%;width: 100%;height:100%width:100%;background-size:800px 100%;} .temp_size568 .bpb-p12-mob-image { font-size: 25px;text-align: center;margin: 20px 0;color:red;height:30%;width:30%;} .temp_size568 .bpb-p12-mob-body-text { font-size: 18px;margin:-130px 10px 0 60px;color:#fff;width:70%;float:right;font-family:sans-serif;} .temp_size568 .bpb-p12-mob-text { color:#fff;} .temp_size568 .bpb-p12a-mob-text { font-size: 25px;text-align: center;margin: 10px 0;font-family:serif;} So basically, i need to automaticly (on click) to get a string that will have .temp_size568 in front of each class (inject the .temp_size before each class name) and then join it into one string. Those original classes will be different in names, so it needs to work automatically regardless of the names. If you have any questions, please ask Thanks Jan