<ul class="box">
	<li class="item">내용</li>
	<li class="item">내용</li>
	<li class="item">내용</li>
	<li class="item">내용</li>
</ul>
ul {
	list-style: none;
	padding: 0;
}

.box {
	overflow: hidden;
	box-sizing: border-box;
	width: 1140px;
	height: 100px;
	margin: 20px auto;
	border: 1px solid #333;
	background-image: linear-gradient(90deg, transparent 284px, #999 284px);
    background-size: 285px 100%;
}

.box .item {
	box-sizing: border-box;
	float: left;
	width: 25%;
	padding: 10px;
}

External CSS

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External JavaScript

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