div#container	{ 
 min-width : 0; 
}
div#contents	{
 min-width : 0; 
}
#menubar		{
 width: 170px;
}

h2 {
 border-bottom :  solid 1px gray;
  margin-left : 0px;
}
h3, h4, h5 {
  margin-left : 0px;
}

h4::before {
  content: '▸';
}
h5::before {
  content: '▹';
}

rt {
  zoom: 0.6;
}

input[type=radio] {
  margin-top: 20px;
}