CSS to modify the "Get a Copy of the Response" text

CSS to modify the "Get a Copy of the Response" text:

.surveysparrow-survey-container--classic-form .surveysparrow-survey-form-wrapper--centered .ss_completed_container .c-edit:last-child {
font-size: 20px !important;
text-shadow: 2px 2px 4px rgba(0, 0, 0, 0.5);
}