เมื่อเนื้อหา溢出 (overflow) ให้ใช้คุณสมบัติ overflowX เพื่อจัดการขอบแนวนอน ตั้งค่าเป็น scroll จะแสดง scrollbar แนวนอนให้ผู้ใช้เลื่อนอ่านได้
ตัวอย่าง
<!DOCTYPE html>
<html>
<head>
<style>
#box {
width: 350px;
height: 150px;
background-color: orange;
border: 3px solid red;
white-space: nowrap;
margin-left: 20px;
}
</style>
</head>
<body>
<p>Click to use overflow property and set scroll.</p>
<button type="button" onclick="display()">Set Scroll</button>
<div id="box">
<p>This is a div. This is a div. This is a div. This is a div. This is a div.</p>
<p>This is a div. This is a div. This is a div. This is a div. This is a div.</p>
<p>This is a div. This is a div. This is a div. This is a div. This is a div.</p>
<p>This is a div. This is a div. This is a div. This is a div. This is a div.</p>
<p>This is a div. This is a div. This is a div. This is a div. This is a div.</p>
<p>This is a div. This is a div. This is a div. This is a div. This is a div.</p>
</div>
<br><br>
<script>
function display() {
document.getElementById("box").style.overflowX = "scroll";
}
</script>
</body>
</html>