.CodeMirror-line-numbers {
    width: 2.2em;
    color: #aaa;
    background-color: #eee;
    text-align: right;
    padding-right: .3em; 
    font-size: 10pt;
    font-family: monospace;
/*     padding-top: .4em; */
}

.CodeMirror {
	text-align: left;
}