ol {
    counter-reset: list;
    padding-left: 0;
}

li {
    list-style: none;
    margin-bottom: 10px;
    position: relative;
    padding-left: 30px;
}

li::before {
    counter-increment: list;
    content: counter(list, lower-alpha) ") ";
    position: absolute;
    left: 0;
}