Put this to change both those things
QUOTE
<style type="text/css">
table.blogbody {
width:WIDTH OF THE BLOGpx;
font-family: Arial;
font-weight: none;
font-size: 12pt;
color: #COLOR;
text-align: justify;
padding: 0px;
margin-top: 2px;
}
.caption, .blogheader {
width: 380px;
padding: 3px;
font-family: CHANGE FONT;
font-size: 16pt;
text-align: center;
color: #COLOR;
background-color: #COLOR;
text-transform: lowercaps;
margin-top: 10px;
</style>