.btn { width: 100px }

.s12 { font-size: 12pt; }
.s15 { font-size: 15pt; }

body {
 min-width: 860px;
 margin: 0px;
 padding: 0px;
 font-family: 'Trebuchet MS', sans-serif;
 color: #444;
 background: #ffffff;
 height: 100%;
}

div.main {
 padding: 10px;
 width: 780px;
 height: 340px; /* for IE */
 min-height: 340px; /* for not-IE */
 text-align: left;
}

html>body div.main {
 height: auto; /* for not-IE */
}