#tutorial { 
  float: left;
  width: 516px;
  min-height: 90px;
  border-top: 1px solid black;
  border-bottom: 1px solid black;
}

h1.tutorial_title { 
  font-size: 14px;
}

h2.tutorial_title { 
  font-size: 12px;
  /*padding-left: 20px;*/
}

tt { font-size: 10px; }

pre,samp {
 font-size: 11px;
 border: 1px solid black;
 background-color: #ffffff;
 margin-left: 5px;
 padding: 2px;
/* z-index: -1;*/
}

#tutorial_space {
 //display: none;
}

#tut_decoration_top {
 float: left;
 //display: none;
 overflow: hidden;
}

#tut_decoration_bottom {
 float: left;
 //display: none;
 padding-bottom: 10px;
 overflow: hidden;
}

#close1 {
 float: right;
 border: 1px solid black;
 border-bottom: 0px;
 background-color: #ffffee;
 font-weight: bold;
 margin-right: 12px;
 padding: 2px;
 padding-left: 4px;
 padding-right: 4px;
// display: none;
// visibility: hidden;
}

#close2 {
 float: right;
 border: 1px solid black;
 border-top: 0px;
 background-color: #ffffee;
 font-weight: bold;
 margin-right: 12px;
 padding: 2px;
 padding-left: 4px;
 padding-right: 4px;
// display: none;
// visibility: hidden;
}

.black { color: #000000; }