.news-item img[style*="float: left"],
.news-item img[style*="float: right"] {
    max-width: 240px;
    width: 100%;
    padding: 20px;
}
 
.news-item img {
  max-width: 100%;
}
  
@media screen and (max-width: 575px) {
.news-item img[style*="float: left"],
.news-item img[style*="float: right"]  {
    max-width: 100%;
    padding:20px 0;
}
 }