.ja10 { font-size: 10px; line-height: 150%} 
.ja11{font-size:11px; line-height:150%} 
.ja12{font-size:12px; line-height:150%} 
.ja13 { font-size: 13px; line-height: 150%} 
.ja14 { font-size: 14px; line-height:150%} 
.ja14_b { font-size: 14px; line-height:150%;  font-weight: bold}
.ja12_b { font-size: 12px; line-height:150%;  font-weight: bold}
.11en { font-family: "Arial", "Helvetica", "sans-serif"; font-size: 11px; line-height: 150%} 
.12en { font-family: "Arial", "Helvetica", "sans-serif"; font-size: 12px; line-height: 150%} 
.13en { font-family: "Arial", "Helvetica", "sans-serif"; font-size: 13px; line-height: 150%} 
.14en { font-family: "Arial", "Helvetica", "sans-serif"; font-size: 14px; line-height: 150%} 
.14en_b { font-family: "Arial", "Helvetica", "sans-serif"; font-size: 14px; font-weight: bold; line-height: 150%} 
.12en_b { font-family: "Arial", "Helvetica", "sans-serif"; font-size: 12px; line-height: 150%; font-weight: bold} 
.en11 { font-family: "Arial", "Helvetica", "sans-serif"; font-size: 11px; line-height: 150%} 
.en12 { font-family: "Arial", "Helvetica", "sans-serif"; font-size: 12px; line-height: 150%} 
.en13 { font-family: "Arial", "Helvetica", "sans-serif"; font-size: 13px; line-height: 150%} 
.en14 { font-family: "Arial", "Helvetica", "sans-serif"; font-size: 14px; line-height: 150%} 
.en14_b { font-family: "Arial", "Helvetica", "sans-serif"; font-size: 14px; font-weight: bold; line-height: 150%} 
.en12_b { font-family: "Arial", "Helvetica", "sans-serif"; font-size: 12px; line-height: 150%; font-weight: bold} 


a:hover { color: #0099FF} 
a { color: #0066CC} 

.cll { text-decoration: none} 
.h1 { font-size: 20px} 

.white { color: #FFFFFF} 

#lesson {margin-left :20px; margin-top:20px}
.copyright {  font-family: "Arial", "Helvetica", "sans-serif"; font-size: 11px; color: #666666}

ul {margin : 0.5em 1em 0.5em 2em; list-style-type: disc}
h1 {  font-size: 18px; font-style: normal; font-weight: bold; font-variant: normal; color: #0066CC}
h2 {  font-size: 14px; font-style: normal; font-weight: bold; font-variant: normal; margin:0.5em}