.header_user_info a {
    display: block;
    cursor: pointer;
}

@media screen and (max-width: 479px) {
}

@media screen and (min-width: 480px) and (max-width: 767px) {
}

@media screen and (max-width: 767px) {
    header .nav nav > .header_user_info { margin-right: 10px; }
}

@media screen and (min-width: 768px) {
    .header_user_info { float: right; }
}

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

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

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

@media screen and (min-width: 1200px) {
}