/* adsense */
#adsense336x280middle { float:right; margin:10px 0 10px 10px;}
.whadsense{width:346px; height:300px;}
.whadsensebottom{width:336px; height:280px;}
#adsense336x280bottom { margin:0 auto;}
@media (min-width: 320px) {
  .whadsensebottom{width:300px; height:250px;}
  .whadsense {width: 210px; height: 220px; }
}
@media (min-width: 470px) {
  .whadsensebottom{width:336px; height:280px;}
  .whadsense {width: 260px; height: 270px; }
}
@media (min-width: 850px) {
  .whadsensebottom{width:336px; height:280px;}
  .whadsense {width: 346px; height: 300px; }
}


그리고 넣고싶은 위치에  <div id="adsensemiddle"></div> 를 삽입해주시면 됩니다.