.header_logo{background:#fff;text-align:center;margin-bottom:50px;}
.header_logo img{max-width:300px;margin:auto;}

@media only screen and (max-width:600px){
    
    .header_logo{margin-bottom:20px;}
    .email-row .in_p{padding:12px 15px ;}
    .btn-verify{}
    .otp-digit{width:35px;height:40px}
    .otp-digits{position:relative;left:-5px;}
    .otp-actions.otp_aa{    display: block;}
        .btn-verify.btn_a {  height: auto;  padding: 10px 15px;        font-size: 14px;        display: block;        width: 100%;  margin-top:15px; margin-bottom:25px;  }

}