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HTML

              
                <div class="container">

		<div class="selected-item">
			<p>You Selected Country : <span>Select</span></p>
		</div>

		<select name="" id="cusSelectbox">
			<option value="Select">Select</option>
			<option value="India">India</option>
			<option value="Nepal">Nepal</option>
			<option value="Bangladesh">Bangladesh</option>
			<option value="Sri Lanka">Sri Lanka</option>
		</select>
	
		<div class="feaBlock">
			<ol>
				<li>Up & Down key works on list items.</li>
				<li>Key enter works on list items.</li>
				<li>Scrollbar hide, but you can scroll the list items.</li>
			</ol>
		</div>

	</div>
              
            
!

CSS

              
                /* font-face */
@import url(https://fonts.googleapis.com/css?family=Roboto);
/* variables */
/* default style */
body {
  background-color: #fff;
  color: #333;
  font-family: "Roboto", arial, sans-serif;
  font-size: 16px;
}
/* common style */
* {
  margin: 0;
  padding: 0;
}
*,
*:after,
*:before {
  box-sizing: border-box;
}
* {
  outline: none;
}
::-webkit-scrollbar { 
  display: none; 
}
/* */
.container {
	margin: 0 auto;
	max-width: 400px;
  text-align: center;
}
.selected-item {
  margin: 20px 0;
}
/* custom select style */
.cusSelBlock {
  height: 50px;
  min-width: 250px;
}
#cusSelectbox {
  height: 100%;
  width: 100%;
}
.s-hidden {
  visibility: hidden;
}
.cusSelBlock {
  display: inline-block;
  position: relative;
  -webkit-perspective: 800px;
          perspective: 800px;
}
.selectLabel {
  position: absolute;
  left: 0;
  top: 0;
  z-index: 9999;

  background-color: #fff;
  border: 1px solid #333;
  box-shadow: 0 1px 1px rgba(0, 0, 0, 0.1);
  color: #333;
  cursor: pointer;
  display: block;

  height: 100%;
  width: 100%;

  letter-spacing: 2px;
  line-height: 50px;
  padding: 0 50px 0 20px;
  text-align: left;

  -webkit-transform-style: preserve-3d;
          transform-style: preserve-3d;
  -webkit-transform-origin: 50% 0%;
          transform-origin: 50% 0%;

  -webkit-transition: -webkit-transform 300ms;
  transition: -webkit-transform 300ms;
  transition: transform 300ms;
  transition: transform 300ms, -webkit-transform 300ms;

  -webkit-backface-visibility: hidden;
  -webkit-touch-callout: none;
  -webkit-user-select: none;
     -moz-user-select: none;
      -ms-user-select: none;
          user-select: none;
  &:after {
    content: '\25BC';
    border-left: 1px solid #333;
    color: #333;
    font-size: 12px;
    line-height: 17px;
    padding: 10px;
    text-align: center;

    position: absolute;
    right: 0px;
    top: 15%;

    height: 70%;
    width: 50px;
  }
  &:active {
    -webkit-transform: rotateX(30deg);
            transform: rotateX(30deg);
    &:after {
      content: '\25B2';
    }
  }
  &.active {
    &:after {
      content: '\25B2';
    }
    &+.options {
      //height: 200px;
      //overflow-y: scroll;
    }
  }
}
::-webkit-scrollbar { 
  display: none; 
}
.options {
  position: absolute;
  top: 50px;

  height: 1px;
  width: 100%;
  li {
    background-color: rgb(255,255,255);
    border-left: 1px solid #333;
    border-right: 1px solid #333;
    border-bottom: 1px solid #333;
    cursor: pointer;
    display: block;
    line-height: 50px;
    list-style: none;
    opacity: 1;
    padding: 0 50px 0 20px;
    text-align: left;

    -webkit-transition: -webkit-transform 300ms ease;
    transition: -webkit-transform 300ms ease;
    transition: transform 300ms ease;
    transition: transform 300ms ease, -webkit-transform 300ms ease;

    position: absolute;
    top: -50px;
    left: 0;
    z-index: 0;

    height: 50px;
    width: 100%;
    &:hover, &.active {
      background-color: #333;
      color: #fff;
    }
    &:nth-child(1) {
      -webkit-transform: translateY(2px);
      transform: translateY(2px);
      z-index: 6;
    }
    &:nth-child(2) {
      -webkit-transform: translateY(4px);
      transform: translateY(4px);
      z-index: 5;
    }
    &:nth-child(3) {
      z-index: 4;
    }
    &:nth-child(4) {
      z-index: 3;
    }
    &:nth-child(5) {
      z-index: 2;
    }
    &:nth-child(6) {
      z-index: 1;
    }
  }
}

/**/
.feaBlock {
	margin: 20px 0;
	text-align: left;
}
              
            
!

JS

              
                $(function () {

	var defaultselectbox = $('#cusSelectbox');
	var numOfOptions = $('#cusSelectbox').children('option').length;

	// hide select tag
	defaultselectbox.addClass('s-hidden');

	// wrapping default selectbox into custom select block
	defaultselectbox.wrap('<div class="cusSelBlock"></div>');

	// creating custom select div
	defaultselectbox.after('<div class="selectLabel"></div>');

	// getting default select box selected value
	$('.selectLabel').text(defaultselectbox.children('option').eq(0).text());

	// appending options to custom un-ordered list tag
	var cusList = $('<ul/>', { 'class': 'options'} ).insertAfter($('.selectLabel'));

	// generating custom list items
	for(var i=0; i< numOfOptions; i++) {
		$('<li/>', {
		text: defaultselectbox.children('option').eq(i).text(),
		rel: defaultselectbox.children('option').eq(i).val()
		}).appendTo(cusList);
	}

	// open-list and close-list items functions
	function openList() {
		for(var i=0; i< numOfOptions; i++) {
			$('.options').children('li').eq(i).attr('tabindex', i).css(
				'transform', 'translateY('+(i*100+100)+'%)').css(
				'transition-delay', i*30+'ms');
		}
	}

	function closeList() {
		for(var i=0; i< numOfOptions; i++) {
			$('.options').children('li').eq(i).css(
				'transform', 'translateY('+i*0+'px)').css('transition-delay', i*0+'ms');
		}
		$('.options').children('li').eq(1).css('transform', 'translateY('+2+'px)');
		$('.options').children('li').eq(2).css('transform', 'translateY('+4+'px)');
	}

	// click event functions
	$('.selectLabel').click(function () {
		$(this).toggleClass('active');
		if( $(this).hasClass('active') ) {
			openList();
			focusItems();
		}
		else {
			closeList();
		}
	});

	$(".options li").on('keypress click', function(e) {
		e.preventDefault();
		$('.options li').siblings().removeClass();
		closeList();
		$('.selectLabel').removeClass('active');
		$('.selectLabel').text($(this).text());
		defaultselectbox.val($(this).text());
		$('.selected-item p span').text($('.selectLabel').text());
	});
	
});

function focusItems() {

	$('.options').on('focus', 'li', function() {
		$this = $(this);
		$this.addClass('active').siblings().removeClass();
	}).on('keydown', 'li', function(e) {
		$this = $(this);
		if (e.keyCode == 40) {
			$this.next().focus();
			return false;
		} else if (e.keyCode == 38) {
			$this.prev().focus();
			return false;
		}
	}).find('li').first().focus();

}
              
            
!
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