JSFiddle - React, Tailwind, and code Playground

by gbos

HTML

<div class="custom-select">
  
  <select name="selet">
    <option value="1">1</option>
    <option value="2">2</option>
    <option value="3">3</option>
    <option value="4">4</option>
    <option value="5">5</option>
  </select>
  
  <div class="arrow"></div>
  
</div>

CSS

.custom-select {
  position: relative;
  display: inline-block;

}

select {
  padding: 0.7rem 5rem 0.7rem 1rem;
  background-color: #ccc;
  border: 0;

}

.arrow {
  position: absolute;
  right: 0;
  top: 0;
  height: 100%;
  width: 2rem;
  background-color: #aaa;
  pointer-events: none;
}

.arrow::after,
.arrow::before {
  content: '';
  position: absolute;
  --size: 0.4rem;
  --arrow-color: rgba(255, 255, 255, 0.7);
  top: 50%;
  left: 50%;
  transform: translate(-50%, -50%);
  border-left: var(--size) solid transparent;
  border-right: var(--size) solid transparent;
}


.arrow::before {
  border-bottom: var(--size) solid var(--arrow-color);
  top: 40%;
}

.arrow::after {
  border-top: var(--size) solid var(--arrow-color);
  top: 60%;
}