Visually Hidden vs display:none

visually-hidden.css

.visuallyhidden {
    position: absolute;
    width: 1px; /* Setting this to 0 make it invisible for VoiceOver */
    height: 1px; /* Setting this to 0 make it invisible for VoiceOver */
    padding: 0;
    margin: -1px;
    border: 0;
    clip: rect(0 0 0 0);
    overflow: hidden;    
}