h1 {font-size:26px;font-style:normal;font-family:FreeMono,FreeSerif,Sawasdee,STIX;color:#000000;margin: 1px}
h2 {font-size:24px;font-style:normal;font-family:FreeMono,FreeSerif,Sawasdee,STIX;color:#000000;margin: 2px}
h3 {font-size:22px;font-style:normal;font-family:FreeMono,FreeSerif,Sawasdee,STIX;color:#000000;margin: 3px}
h4 {font-size:21px;font-style:normal;font-family:FreeMono,FreeSerif,Sawasdee,STIX;color:#000000;margin: 4px}
h5 {font-size:20px;font-style:normal;font-family:FreeMono,FreeSerif,Sawasdee,STIX;color:#000000;margin: 5px}
h6 {font-size:19px;font-style:normal;font-family:FreeMono,FreeSerif,Sawasdee,STIX;color:#000000;margin: 6px}
p  {font-size:18px;font-style:normal;font-family:FreeMono,FreeSerif,Sawasdee,STIX;color:#000000;margin: 7px}
header {background-color: #dddddd;}
header p  {font-size:18px;font-style:normal;font-family:FreeMono,FreeSerif,Sawasdee,STIX; color:#000000; margin: 1px}
body 	{background-color: #ffffff;margin:0;}
footer {background-color: #ffffff;margin:10px;float: right;}
 
#header	{width: 100%; margin:0;}
#article	{width: 100%; margin:0;}
#footer	{width: 100%; margin:10px;}


nav {  box-sizing: border-box;  float:left;  width: 100%;  background: #dddddd;  font-size: 16px;border-bottom: 1px solid #555; border-bottom-color: #0000000}
nav ul {  margin: 0; padding: 0;}
nav a {  display: block;  color: #000000;  text-decoration: none;}
nav ul li {  position: relative;  float: left;  list-style: none;}
nav ul li:hover { background: #ffffff;}
nav ul li a { padding: 10px;}
nav ul ul { position: absolute; top: -9999px;  left: -9999px;  background: #ffffff;  box-shadow: 5px 5px 10px rgba(0, 0, 0, 0.6);}
nav ul ul li {  float: none;  width: 200px;  border-bottom: 1px solid #555;}
nav ul ul li a { padding: 10px 20px;}
nav ul li:hover > ul { top: 100%;  left: 0;}
nav ul ul li:hover > ul { top: 0;  left: 200px;}
nav ul li.submenu > a:after { position: relative; float: right; content: ''; margin-left: 10px; margin-top: 5px; border-left: 5px solid transparent; border-right: 5px solid transparent; border-top: 5px solid #fff; border-bottom: 5px solid transparent;}
nav ul ul li.submenu a:after { margin-left: auto; margin-right: -10px; border-left: 5px solid #fff; border-right: 5px solid transparent; border-top: 5px solid transparent; border-bottom: 5px solid transparent;}
nav ul ul li:last-child { border-bottom: none;}