#presentation_chapters {/*padding:2em 1.4em 1.4em;*/ overflow:hidden; clear:both;}
  #presentation_chapters h3 {font-size:1.5em; line-height:3em; padding:0 0 0 35px; font-weight:normal; color:#999;}
  #presentation_chapters .presentation_chapters_item {width: 100%; min-width:100%; padding:0 0 0 35px;}
    #presentation_chapters .presentation_chapters_item .chapter_item {width:160px; margin:0 55px 20px 0; float:left; }
      #presentation_chapters .presentation_chapters_item .chapter_item .left {display:block;}
      #presentation_chapters .presentation_chapters_item .chapter_item .right {padding:8px 0 0;}
        #presentation_chapters .presentation_chapters_item .chapter_item .right .title {padding:0 0 5px;}
        #presentation_chapters .presentation_chapters_item .chapter_item .right .point {color:#758eca; float:right; font-style:oblique; font-weight:bold; margin:10px 0 0;}