防止关注LI元素使字体颜色变白？

怎么能阻止它呢？

.select__label {
  display: block;
}

.select__multiple {
  border: 0;
  display: block;
  outline: 0;
  border-collapse: collapse;
}
.select__multiple option {
  border-width: 1px 0;
  border-style: solid;
  border-color: deepSkyBlue;
}
.select__multiple .select__option {
  border: 1px solid lightGrey;
  color: black;
  padding: 12px 10px;
  width: 150px;
}
.select__multiple .select__option:hover, .select__multiple .select__option:active, .select__multiple .select__option:visited, .select__multiple .select__option:focus, .select__multiple .select__option:checked, .select__multiple .select__option:selected {
  color: black !important;
}
.select__multiple .select__option:checked {
  color: black;
  border-style: solid;
  border-color: deepSkyBlue;
  background: #dceff7 linear-gradient(0deg, #dceff7 0%, #dceff7 100%);
}
.select__multiple .select__option:checked + :checked {
  border-top-width: 0;
  border-top: 1px solid transparent;
}

  options
  
    option 1
    option 2
    option 3
    option 4
    option 5