使用JavaScript中的columnRuleColor属性设置规则的颜色。您可以尝试运行以下代码以使用JavaScript设置列之间的规则颜色-
<!DOCTYPE html>
<html>
<head>
<style>
#myID {
column-count: 4;
column-rule: 4px outset yellow;
}
</style>
</head>
<body>
<p>Click below to change color</p>
<button onclick="display()">Change Color between Columns</button>
<div id="myID">
This is demo text. This is demo text. This is demo text. This is demo text.
This is demo text. This is demo text. This is demo text. This is demo text.
This is demo text. This is demo text. This is demo text. This is demo text.
This is demo text. This is demo text. This is demo text. This is demo text.
This is demo text. This is demo text. This is demo text. This is demo text.
This is demo text. This is demo text. This is demo text. This is demo text.
This is demo text. This is demo text. This is demo text. This is demo text.
</div>
<script>
function display() {
document.getElementById("myID").style.columnRuleColor = "red";
}
</script>
</body>
</html>