form#custom_login_form, form#custom_registration_form, form#adduser, form#wp_pass_reset {
    border: 1px solid #ccc;
    width: 500px;
    position: relative;
    left: 0px;
    right: 0px;
    margin: 0 auto;
    padding: 10px 10px;
    margin-top: 20px;
}
form#custom_login_form input, form#custom_registration_form input, form#adduser input, form#wp_pass_reset input {
    width: 100%;
}
@media (max-width: 767px) {
    
    form#custom_login_form, form#custom_registration_form, form#adduser, form#wp_pass_reset {
    width: 100%;
}
}
input#custom_login_submit, input#custom_registration_submit, input#submitbtn{
    max-width: 40%;
    margin: 0 auto;
    text-align: center;
    display: block;
}
.textcenter{
    text-align: center;
}
.custom_errors {
    background: red;
    padding: 10px;
}