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/* -----------------------------------------------------------
    .box_slide
----------------------------------------------------------- */
.slick-arrow {
	position: absolute;
	width: 27px;
	height: 51px;
	z-index: 10;
	&::before {
		display: none;
	}
	&.slick-prev {
		left: 45px;
		top: 50%;
		background: url(../images/common/slide_prev.png) 0 0 no-repeat;
		border: none;
		cursor: pointer;
		text-indent:200%;
		white-space:nowrap;
		overflow:hidden;
		@include mq(tab_sp) {
			top: 38%;
			left: 10px;
		}
		&::before {
			display: none;
		}
		&:hover {
			left: 35px;
			@include mq(tab_sp) {
				left: 5px;
			}
		}
	}
	&.slick-next {
		right: 45px;
		top: 50%;
		cursor: pointer;
		background: url(../images/common/slide_next.png) 0 0 no-repeat;
		border: none;
		text-indent: -9999px !important;
		white-space:nowrap;
		overflow:hidden;
		@include mq(tab_sp) {
			top: 38%;
			right: 10px;
		}
		&:hover {
			right: 35px;
			@include mq(tab_sp) {
				right: 5px;
			}
		}
	}
}
.slick-dots {
	position: absolute;
	width: 100%;
	bottom: 20px;
	z-index: 5;
	line-height: 0;
	text-align: center;
	@include mq(sp) {
		bottom: 10px;
	}
	li {
		margin-left: -1px;
		display: inline-block;
		vertical-align: top;
		height: 5px;
		cursor: pointer;
		margin-left: 10px;
		background:  #fff;
		width: 15px;
		height: 15px;
		@include border-radius(50%);
		@include mq(sp) {
			width: 8px;
			height: 8px;
		}
		&:first-child {
			margin-left: 0;
		}
		button {
			width: 15px;
			height: 15px;
			border-radius: 5.5px;
			text-indent: -9999px !important;
			background: none;
			border: none;
			cursor: pointer;
			@include mq(sp) {
				width: 8px;
				height: 8px;
			}
		}
		&.slick-active {
			background: #838383;
		}
	}
}

<link href="css/slick.css" rel="stylesheet" type="text/css" media="all">
<script src="js/slick.min.js"></script>

//slick
$('.slide').slick({
	arrows: false,
	autoplay: true,
	autoplaySpeed: 5000,
	dots: true,
});

<div class="box_slide">
	<ul class="slide">← ここのcssがjsで読み込まれてる
		<li class="slider1"><img src="images/img_slide01.jpg" alt="slide01"></li>
		<li class="slider2"><img src="images/img_slide02.jpg" alt="slide02"></li>
		<li class="slider3"><img src="images/img_slide03.jpg" alt="slide03"></li>
		<li class="slider4"><img src="images/img_slide04.jpg" alt="slide04"></li>
		<li class="slider5"><img src="images/img_slide05.jpg" alt="slide05"></li>
	</ul><!-- .slide -->
</div>