Отображение стрелок навигации слайдера только при наведении курсора на слайдер

<div id="myCarousel" class="carousel slide">
<div class="carousel-inne">
<div class="item active"> <img src="img/goods/monitor-3.jpg" alt="" class="img-circle"> </div>
<div class="item"> <img src="img/goods/monitor-3.jpg" alt="" class="img-circle"> </div>
</div>
<a class="left carousel-control" href="#myCarousel" data-slide="prev">&lsaquo;</a> <a class="right carousel-control" href="#myCarousel" data-slide="next">&rsaquo;</a> 
</div>

.carousel {
  position: relative;
  margin-bottom: 22px;
  line-height: 1;
}
.carousel-inner {
  overflow: hidden;
  width: 100%;
  position: relative;
}
.carousel .item {
  display: none;
  position: relative;
  -webkit-transition: 0.6s ease-in-out left;
  -moz-transition: 0.6s ease-in-out left;
  -o-transition: 0.6s ease-in-out left;
  transition: 0.6s ease-in-out left;
}
.carousel .item > img {
  display: block;
  margin:0 auto;
  line-height: 1;
}
.carousel .active,
.carousel .next,
.carousel .prev {
  display: block;
}
.carousel .active {
  left: 0;
}
.carousel .next,
.carousel .prev {
  position: absolute;
  top: 0;
  width: 100%;
}
.carousel .next {
  left: 100%;
}
.carousel .prev {
  left: -100%;
}
.carousel .next.left,
.carousel .prev.right {
  left: 0;
}
.carousel .active.left {
  left: -100%;
}
.carousel .active.right {
  left: 100%;
}
.carousel-control {
  position: absolute;
  top: 50%;
  left: 15px;
  width: 30px;
  height: 30px;
  margin-top: -20px;
  font-size: 40px;
  font-weight: 100;
  line-height: 23px;
  color: #ffffff;
  text-align: center;
  background: #525050;
  opacity: 0.5;
  filter: alpha(opacity=50);
}
.carousel-control.right {
  left: auto;
  right: 15px;
}
.carousel-control:hover {
  color: #ffffff;
  text-decoration: none;
  opacity: 0.9;
  filter: alpha(opacity=90);
}

 /* CAROUSEL PLUGIN DEFINITION
  * ========================== */

  $.fn.carousel = function (option) {
    return this.each(function () {
      var $this = $(this)
        , data = $this.data('carousel')
        , options = $.extend({}, $.fn.carousel.defaults, typeof option == 'object' && option)
        , action = typeof option == 'string' ? option : options.slide
      if (!data) $this.data('carousel', (data = new Carousel(this, options)))
      if (typeof option == 'number') data.to(option)
      else if (action) data[action]()
      else if (options.interval) data.cycle()
    })
  }

  $.fn.carousel.defaults = {
    interval: 0
  , pause: 'hover'
  }

  $.fn.carousel.Constructor = Carousel


 /* CAROUSEL DATA-API
  * ================= */

  $(function () {
    $('body').on('click.carousel.data-api', '[data-slide]', function ( e ) {
      var $this = $(this), href
        , $target = $($this.attr('data-target') || (href = $this.attr('href')) && href.replace(/.*(?=#[^\s]+$)/, '')) //strip for ie7
        , options = !$target.data('modal') && $.extend({}, $target.data(), $this.data())
      $target.carousel(options)
      e.preventDefault()
    })
  })

}(window.jQuery);

    // carousel demo
    $('#myCarousel').carousel()