@media only screen and (min-width:320px) and (max-width:991px) {
h1 {
 font-size:26px!important;
}
 h2 {
 font-size:21px!important;
}
 h3 {
 font-size:19px!important;
}
 h4 {
 font-size:15px!important;
}
}
@media only screen and (min-width:320px) and (max-width:767px) {
.join-body {
    padding: 30px 0 50px;  
}
.join-form-box h4 {
    font-size: 18px !important;
	line-height:24px;
}
.join-form-box {
  padding: 20px 15px 0;
} 

}
@media only screen and (min-width:768px) and (max-width:991px) {
 

}
@media only screen and (min-width:992px) and (max-width:1199px) {
 

}