@media only screen and (max-width: 40em) {
  .span-half {
    -ms-flex-preferred-size: 100%;
	flex-basis: 100%;
	max-width: 100%;
  }
  .span-half img {
  	max-width: 75%;
  	margin: 0 auto;
  	display: block;
  }
  .pb3, .pt3 {
  	padding: 0;
  }
  .ptb3-small{padding: 3.2rem 0;}
}