count in order according to class

HTML

<ol>
    <li class="count">one</li>
    <li class="count">two</li>
    <li class="count">three</li>
    <li class="count">four</li>
    <li>blabla</li>
    <li class="count">five</li>
    <li class="count">six</li>
    <li>blabla</li>
    <li class="count">seven</li>
</ol>

CSS

li {
    list-style-type: decimal;
}
li:not(.count) {
      -webkit-appearance: textfield;
      -moz-appearance: textfield;
      appearance: textfield;
}