#mainArticles h2,#listTopics h2 {
    line-height: 1.5;
}

@media screen and (min-width:600px) {

   #mainArticles h2,#listTopics h2 {
    line-height: 1.5;
}
  .mainContents .article h3, .mainContents div.gallery h3, #mainServices h2, #mainTopics h2, #mainArticles div[id^="blog"] h2 {
    color: red;
    letter-spacing: -1px;
}

    }