使用JavaScript中的paddingTop属性设置顶部填充。您可以尝试运行以下代码以使用JavaScript设置元素的顶部填充-
<!DOCTYPE html>
<html>
<head>
<style>
#box {
border: 2px solid #FF0000;
width: 150px;
height: 70px;
}
</style>
</head>
<body>
<div id = "box">This is demo text.</div>
<br><br>
<button type = "button" onclick = "display()">Top Padding</button>
<script>
function display() {
document.getElementById("box").style.paddingTop = "20px";
}
</script>
</body>
</html>