html {
  width: 100%;
  height: 100%;
}
body {
  /*font-family: "Lucida Sans", "Lucida Grande", Verdana, Arial, sans-serif;*/
  font-family: "Oracle Sans",-apple-system,BlinkMacSystemFont,"Segoe UI","Helvetica Neue",sans-serif;
  font-size: 13px;
  width: 100%;
  height: 100%;
  margin: 0;
  padding: 0;
  display: flex;
  display: -webkit-flex;
  display: -ms-flexbox;
}

.main {
  flex: 5 1;
  -webkit-flex: 5 1;
  -ms-flex: 5 1;
  outline: none;
  position: relative;
  background: #fff;
  padding: 1.2em;
  padding-top: 0.2em;
  overflow: auto
}

.nav_wrap {
  margin: 0;
  padding: 0;
  width: 25%;
  height: 100%;

  position: relative;
  display: flex;
  display: -webkit-flex;
  display: -ms-flexbox;
  flex-shrink: 0;
  -webkit-flex-shrink: 0;
  -ms-flex: 1 0;
}

#nav_list {
  position: relative;
  width: 100%;
  height: 100%;
  border: 0;
  border-right: 1px dotted #eee;
  overflow: auto
}

#resizer {
  position: absolute;
  right: -5px;
  top: 0;
  width: 10px;
  height: 100%;
  cursor: col-resize;
  z-index: 9999;
}

.nav {
  list-style-type: none;
  padding-left: 20px;
}