2017年qs大学学科排名:有关BLOG摸版的问题

我有个BLOG摸版代码（见下），请教一下怎么改日志标题的字体大小和颜色，还有颜色的一些编号是什么？谢谢
#head_tag#
<style>
body,td,th {
font-size: 12px;
color: #FFFFFF;
text-decoration: none;
}
body {
margin-left: 0px;
margin-top: 0px;
margin-right: 0px;
margin-bottom: 0px;
background-color: #000000;
scrollbar-face-color:#000000;
scrollbar-shadow-color:#FF0000;
scrollbar-highlight-color:#FF0000;
scrollbar-3dlight-color:#FF0000;
scrollbar-darkshadow-color:#FF0000;
scrollbar-track-color:#6B0201;
scrollbar-arrow-color:#6B0201;
scrollbar-base-color:#FF0000;
}
.b1 {
font-size: 12px;
line-height: 1.6em;
color: #FF0000;
text-decoration: none;
padding-right: 20px;
padding-left: 20px;
}
.b2 {
font-size: 12px;
line-height: 1.6em;
font-weight: bold;
color: #E5BB79;
text-decoration: none;
background-image: url(http://template.blogworld.com.cn/class18/template49/images/index_07.gif);
background-repeat: no-repeat;
background-position: center center;
}
.b2_1 {
font-size: 12px;
line-height: 1.6em;
font-weight: bold;
color: #E5BB79;
text-decoration: none;
}

}
#content a:link{
font-size: 12px;
font-weight: normal;
color: #FF0000;
text-decoration: none;
}
#content a:visited{
font-size: 12px;
font-weight: normal;
color: #FF0000;
text-decoration: none;
}
#content a:hover{
font-family: "宋体";
font-weight: normal;
color: #FFFFFF;
text-decoration: none;
}
#content {
font-size: 12px;
font-weight: normal;
color: #781006;
text-decoration: none;
}
#content td {
font-size: 12px;
font-weight: normal;
color: #781006;
text-decoration: none;
}
***********************************

}
.diary_title:visited {
FONT-WEIGHT: bold;
FONT-SIZE: 16px;
color: #ff0000;
}
.diary_title:hover {
FONT-WEIGHT: bold;
FONT-SIZE: 16px;
color: #ffffff;
}
.diary_title:link {
FONT-WEIGHT: bold;
FONT-SIZE: 16px;
color: #ff0000;
}
.diary_poster{
FONT-SIZE: 12px;
color: #ff0000;
}
.headbg {
color: #FFFFFF ! important;
background-color:#8A0000 ! important;
}
.today {
color: #FFFFFF ! important;
background-color:#8A0000 ! important;
}
.mainddbg {
color: #FFFFFF ! important;
background-color:#8A0000 ! important;
}
.eachdaybg {
color: #FFFFFF ! important;
background-color:#8A0000 ! important;
}
.datehead {color: #FFFFFF ! important;}
.ziti_bianju {
padding-right: 20px;
padding-left: 20px;
}