#owrap { width: 100%; overflow: hidden; margin: 0 auto; background: #fff; }
#iwrap { display: block; }
.page { display: block; float: left; position: relative; }


#toc_show { position: fixed; top: 1em; left: 2em; display: block; }
#toc_show a { display: block; width: 36px; height: 24px; background: transparent url(../i/nav_icon.png) 0 0 no-repeat;  }
#toc { position: fixed; top: -1em; left: 2em; padding: 0; background: #efefef; border: 1px solid #aaa; border-radius: .5em; color: #000; display: none; padding-top: 1em; box-shadow: 5px 5px 3px rgba(0,0,0,0.4); }
#toc h2 { color: #000; }
#toc a { color: #444; }
#toc a.close { text-align: right; font-weight: bold; display: block; float: right; margin-right: 5px; font-size: 80%; color: #600; }
#toc .inner { padding: 1em; }