t / t4018 / css-prop-sans-indenton commit strbuf.c: add `strbuf_insertf()` and `strbuf_vinsertf()` (5ef264d)
   1RIGHT, label.control-label {
   2margin-top: 10px!important;
   3padding: 0;
   4border : 10px ChangeMe #C6C6C6;
   5}