h2 .su-post-title a {
  padding-right: 25px;
}
.art-postcontent h4 {
  display: block;
  height:40px;
  line-height: 40px;
  color: #273E14;
  margin: 10px 0 0;
  padding: 0 0 0 45px;
  font-size: 24px;
  background-image:url(http://mt-wellness.jp/blog/wp-content/uploads/2014/09/bg_title_h2.png);
  background-repeat: no-repeat;
}
.art-postcontent .su-posts h4 {
  display: block;
  color: #273E14;
  margin: 10px 0 0;
  font-size: 14px;
  background-image:none;
}