.node-platform-form  #field-email-address-add-more-wrapper {
 display:none;
}
.node-api-form  #field-email-address-add-more-wrapper {
 display:none;
}
.node-product-form  #field-email-address-add-more-wrapper {
 display:none;
}
.node-article-form  .field-name-field-keywords {
 display:none;
}