如何用花哨的警报框替换弹出的JavaScript警报？
要设计一个自定义JavaScript警报框，请尝试运行以下代码。该代码使用JavaScript库jQuery和CSS创建与标准JavaScript警报框不同的精美警报框-
示例
<!DOCTYPE html>
<html>
<head>
<script src="https://cdn.staticfile.org/jquery/3.2.1/jquery.min.js">
</script>
<script>
function functionAlert(msg, myYes) {
var confirmBox = $("#confirm");
confirmBox.find(".message").text(msg);
confirmBox.find(".yes").unbind().click(function() {
confirmBox.hide();
});
confirmBox.find(".yes").click(myYes);
confirmBox.show();
}
</script>
<style>
#confirm {
display: none;
background-color: #91FF00;
border: 1px solid #aaa;
position: fixed;
width: 250px;
left: 50%;
margin-left: -100px;
padding: 6px 8px 8px;
box-sizing: border-box;
text-align: center;
}
#confirm button {
background-color: #48E5DA;
display: inline-block;
border-radius: 5px;
border: 1px solid #aaa;
padding: 5px;
text-align: center;
width: 80px;
cursor: pointer;
}
#confirm .message {
text-align: left;
}
</style>
</head>
<body>
<div id = "confirm">
<div class = "message">This is a warning message.</div>
<button class ="yes">OK</button>
</div>
<input type = "button" value = "Click Me" onclick = "functionAlert();" />
</body>
</html>