@media (max-width: 991px) {
  #block-block-20, #block-block-21 {
    display: none;
  }
}

.default-clock {
	width:90px; 
    height:97px; 
    border: none; 
    margin-top: 0;
    opacity: 1 !important;
}

#block-block-21 .block-content>div>div iframe, 
#block-block-20 .block-content>div>div iframe {
display: none;
}