form.wpcf7-form.sent .wpcf7-response-output, 
form.wpcf7-form.init.sent .wpcf7-response-output, 
form.wpcf7-form.invalid .wpcf7-response-output, 
.wpcf7 form.wpcf7-form.sent.init .cf7sg-response-output  {
  display: block !important;
}  

.wpcf7 form.sent .wpcf7-response-output {
    border-color: white;

}