@media screen and (max-width:980px){
    /* header area */
    /* ============== */
  .logo-area{
    width: 100%;
    height: 50px;
    float: none;
    margin-top: 10px;
    text-align: center;
    }
    .login-area{
    width: 405px;
    float: none;
    margin: auto;        
    }
    .login-area form{
    float:none;
    }
    .login {
        margin:auto;
        text-align:center;
        margin-top: -11px;
        margin-bottom: 10px;
    }

    /* Sign up area */
    /* ================ */
    .left-area{
        width:100%;
        float:none;
    }
    .right-area{
        width:100%;
        float:none;
    }
    
    .birth .birth-link {
        float:none;
        margin-top:58px;
    }
} 
@media screen and (max-width:480px){
    .login-area form{
   float: none;
}
    .email{
    float:none;
    margin-right: 0px;
}
    .password{
    float:none;
    margin-right: 0px;
    margin-bottom: 0px;
  }
    .login{
    float: none;
    margin-top: 4px;
}
    .login-area input[type="text"], .login-area input[type="password"] {
    width: 100%;
    box-sizing: border-box;
    }

}