マウス、スクロールのアイコン

<span class="dli-scroll"></span>

.dli-scroll {
  display: inline-block;
  vertical-align: middle;
  color: #333;
  line-height: 1;
  position: relative;
  width: 0.65em;
  height: 1em;
  border: 0.1em solid currentColor;
  border-radius: 1em;
  box-sizing: content-box;
}

.dli-scroll::before {
  content: '';
  position: absolute;
  top: 0.125em;
  left: 0;
  right: 0;
  margin: auto;
  width: 0.143em;
  height: 0.22em;
  background: currentColor;
  border-radius: 50%;
}