Блог

<div class="select">
  <select>
    <option value="HTML">HTML</option>
    <option value="CSS">CSS</option>
    <option value="JavaScript">JavaScript</option>
    <option value="Pixso">Pixso</option>
  </select>
</div> 

$gray: #ccc;

html, body {
  width: 100%;
  height: 100%;
  display: flex;
  justify-content: center;
  align-items: center;
}

.select {
    position: relative;
    
    select{
      width: 100%;
        border: 1px solid $gray;
        border-radius: 2px;
        position: relative;
        outline: none;
        padding: 10px 12px 12px;
        padding-right: 40px;
        background: #fff;
        -moz-appearance: none;
        -webkit-appearance: none;
    }

    &:after {
    content: '‹';
    color: $gray;
    font-size: 26px;
    line-height: 0;
    display: block;
    position: absolute;
    top: 20px;
    right: 19px;
    transform: rotate(-90deg);
    }
}