.header .action .welcome-link {
    flex: 0 1 180px;
    min-width: 0;
}

.header .welcome-link #header_login_btn {
    display: block;
    max-width: 100%;
    overflow: hidden;
    padding-right: 0;
    padding-left: 0;
    text-overflow: ellipsis;
    white-space: nowrap;
}

.header .welcome-link .welcome {
    display: block;
    overflow: hidden;
    text-overflow: ellipsis;
    white-space: nowrap;
}

.header .action .header-register {
    flex: 0 0 auto;
}

.header .action .header-register #header_regist_btn {
    flex-shrink: 0;
    white-space: nowrap;
}