ul, ol {
    list-style:none;
    padding: 0;
}
       
ol ul {
 margin-left:1em;   
}

ol {
  list-style-type: none;
  margin-left: 0;
}

ol > li {
  counter-increment: customlistcounter;
}

ol > li:before {
  content: counter(customlistcounter) "";
}

ol.custom:first-child {
  counter-reset: customlistcounter;
}