#block-views-newsletter-block, 
#block-views-articles-block {
   background: #afc07a;
    display: inline;
    float: right;
    padding: 10px;
   margin: 0 0 15px 15px;
    position: relative;
    z-index: 100;
}
#block-views-newsletter-block > h2,
#block-views-articles-block > h2 {
    border-bottom: 1px dotted green;
    color: #a23587;
    margin: 0;
    padding: 0 10px;
    text-transform: uppercase;
}
#block-views-newsletter-block .field-content > a,
#block-views-articles-block .field-content > a {
    border-bottom: 1px dotted green;
    display: block;
    padding: 5px 10px;
}
@media (max-width: 480px) {
#block-views-newsletter-block, 
#block-views-articles-block {
  margin: 20px 0;
  float: left;
  overflow: auto;
}
}