.code39 {
 height: 100px;
 float: left;
}
body {
 text-align: center;  /* for IE */
}
.center {  /* for container DIV, for Firefox and Safari */
 margin: 0 auto;
}
.bW {
 width: 5px;
 border-left: 2px black solid;
}
.Bw {
 width: 2px;
 border-left: 5px black solid;
}
.bw {
 width: 2px;
 border-left: 2px black solid;
}
.BW {
 width: 5px;
 border-left: 5px black solid;
}