BODY, TH, TD{  font-size: 12px; font-family: "Arial", "Helvetica", "sans-serif"}
.topl {  background-image:  url(images/mx_r4_c2.gif)}
.topr {  background-image: url(images/mx_r4_c3.gif)}
.top_l {  background-image: url(images/mx_r4_c2.gif)}
.top_r {  background-image: url(images/mx_r4_c3.gif)}
.l {  background-image: url(images/about_02.gif)}
.r {  background-image: url(images/about_03.gif)}
.f10px {  font-size: 10px; line-height: 14px; font-family: "Arial", "Helvetica", "sans-serif"}
.f12px {  font-size: 12px; line-height: 16px; font-family: "Arial", "Helvetica", "sans-serif"}
.f14px {  font-size: 14px; line-height: 18px; font-family: "Arial", "Helvetica", "sans-serif"}
.f15px {  font-size: 15px; line-height: 20px; font-family: "Arial", "Helvetica", "sans-serif"}
.f16px {  font-size: 16px; line-height: 22px; font-family: "Arial", "Helvetica", "sans-serif"}
.f20px {  font-size: 20px; line-height: 22px; font-family: "Arial", "Helvetica", "sans-serif"}

sup {  font-size: 85%; vertical-align: top;}
sub {  font-size: 85%; vertical-align: bottom;}