.checkmark-list {
  position: relative;
  border-radius: 0;
  background: transparent;
}
.checkmark-list:before {
  content: '';
  position: absolute;
  top: 5px;
  left: 9px;
  width: 4px;
  height: calc(100% - 10px);
  background: hsl(0, 0%, 76%);
}

.checkmark-list_item {
  display: flex;
  flex-flow: row nowrap;
  justify-content: flex-start;
  align-items: center;
  border: 0 none;
  border-radius: 0;
  padding: 0.5rem 0.25rem 0.5rem 0;
  background-color: transparent;
}
.checkmark-list_item:first-child {
  padding-top: 0;
}
.checkmark-list_item:last-child {
  padding-bottom: 0;
}

.checkmark-list_item .icon {
  width: 20px;
  height: 20px;
  margin-right: 0.5rem;
  border: 7px solid hsl(0, 98%, 33%);
  border-radius: 50%;
  background-color: hsl(0, 98%, 33%);
  color: hsl(0, 0%, 100%);
}
.checkmark-list_item.is--checked .icon {
  border-color: hsl(133, 98%, 33%);
  background-color: hsl(133, 98%, 33%);
}
.checkmark-list_item.is--checked a {
  color: hsl(0, 0%, 20%);
  cursor: pointer;
}