javascript如何显示div总是打开的？

<div style="display: block;">内容</div>

<div id="myDiv">内容</div>

<script>
    var div = document.getElementById("myDiv");
    div.style.display = "block";
</script>

<div id="myDiv">内容</div>

<script src="https://code.jquery.com/jquery-3.6.0.min.js"></script>
<script>
    $(document).ready(function() {
        $("#myDiv").show();
    });
</script>