Custom select

index.html

<select name="" id="" class="select">
  <option value="">Opção 1</option>
  <option value="">Opção 2</option>
  <option value="">Opção 3</option>
</select>

script.js

$(document).ready(function(){

$('.select').customSelect();
  
});

style.css

.select {
  -webkit-appearance: none;
  -moz-appearance: none;
  appearance: none;
  border: 1px solid #c9c9c9;
  padding: 4px 60px 4px 4px;
  border-radius: 3px;
  font-size: 16px;
  font-family: Arial;
  background: url('http://i.imgur.com/ELjekQy.png') no-repeat 95% 50%;
}