style.css

li.custom-list {
 padding-right: 0;
 margin-left: 0;
 list-style-type: none;
 counter-increment: step-counter;
 padding-bottom: 15px;
 margin-top: 15px;
 margin-bottom: 15px;
 display: flex;
}

li.custom-list::before {
 content: counter(step-counter);
 margin-right: 20px;
 font-size: 48px;
 background-color: transparent;
 color: #ccc;
 display: inline-block;
 float: left;
 width: 25px;
 line-height: 48px;
}