In node red ajax datatable style is overrided by the default theme style

In node red I'm able to load datatable now but style is being overridden by nodered.

<html>
<head>
<script src="https://ajax.googleapis.com/ajax/libs/jquery/3.3.1/jquery.min.js"></script>
<link rel="stylesheet" type="text/css" href="https://cdn.datatables.net/v/dt/dt-1.10.16/datatables.min.css">
<script type="text/javascript" charset="utf8" src="https://cdn.datatables.net/v/dt/dt-1.10.16/datatables.min.js"></script>
<script>

/* Formatting function for row details - modify as you need */
function format ( d ) {
    // `d` is the original data object for the row
    return '<table cellpadding="5" cellspacing="0" border="0" style="padding-left:50px;">'+
        '<tr>'+
            '<td>Full name:</td>'+
            '<td>'+d.deviceId+'</td>'+
        '</tr>'+
        '<tr>'+
            '<td>Extension number:</td>'+
            '<td>'+d.cameraId+'</td>'+
        '</tr>'+
        '<tr>'+
            '<td>Extra info:</td>'+
            '<td>And any further details here (images etc)...</td>'+
        '</tr>'+
    '</table>';
}

$(document).ready(function() {
    var table = $('#example').DataTable( {
        "ajax": 'https://api.myjson.com/bins/16lp6',
        scrollY:        250,
    	deferRender:    true,
    	scroller:       true,
        "columns": [
            {
                "class":          'details-control',
                "orderable":      false,
                "data":           null,
                "defaultContent": ''
            },
            { "data": "name" },
            { "data": "position" },
            { "data": "office" },
            { "data": "salary" },
            { "data": "extn", "visible": false }
            
        ],
        "order": [[1, 'asc']]
    } );

    // Add event listener for opening and closing details
    $('#example tbody').on('click', 'td.details-control', function(){
        var tr = $(this).closest('tr');
        var row = table.row( tr );

        if(row.child.isShown()){
            // This row is already open - close it
            row.child.hide();
            tr.removeClass('shown');
        } else {
            // Open this row
            row.child(format(row.data())).show();
            tr.addClass('shown');
        }
    });

    // Handle click on "Expand All" button
    $('#btn-show-all-children').on('click', function(){
        // Enumerate all rows
        table.rows().every(function(){
            // If row has details collapsed
            if(!this.child.isShown()){
                // Open this row
                this.child(format(this.data())).show();
                $(this.node()).addClass('shown');
            }
        });
    });

    // Handle click on "Collapse All" button
    $('#btn-hide-all-children').on('click', function(){
        // Enumerate all rows
        table.rows().every(function(){
            // If row has details expanded
            if(this.child.isShown()){
                // Collapse row details
                this.child.hide();
                $(this.node()).removeClass('shown');
            }
        });
    });
});

</script>
<style>
td.details-control {
    background: url('https://cdn.rawgit.com/DataTables/DataTables/6c7ada53ebc228ea9bc28b1b216e793b1825d188/examples/resources/details_open.png') no-repeat center center;
    cursor: pointer;
}
tr.shown td.details-control {
    background: url('https://cdn.rawgit.com/DataTables/DataTables/6c7ada53ebc228ea9bc28b1b216e793b1825d188/examples/resources/details_close.png') no-repeat center center;
}
#btn-show-all-children{
color: black;
width: 49.5%;
border-radius: 2px;
background-color: #AD1625;
}
#btn-hide-all-children{
color: black;
width: 49.5%;
border-radius: 2px;
background-color: Green;
}
table, th , td  {
  border: 2px solid black;
  border-collapse: collapse;
  padding: 5px;
}
th{
bgcolor="#FF0000";
background-color: #6b6767;
color:white;
}
td{
background-color: #F1F1F1;
}
</style>
</head>
<body>
<button id="btn-show-all-children" type="button">Expand All</button>
<button id="btn-hide-all-children" type="button">Collapse All</button>
<hr>
<table id="example" class="display" cellspacing="0" width="100%">
    <thead>
        <tr>
			<th></th>
            <th>Name</th>
            <th>Position</th>
            <th>Office</th>
            <th>Salary</th>
        </tr>
    </thead>
    
</table>
</body>
</html>

It is displaying like this in broser.
image

But it is being displaying like this, I tried to change width height of exapnad collapse buttons. td,th background and font color also I tried to change but it is not applying.

Now working with after little debugging, So if anyone wants to use data table with node-red you can use the below code but widget size should be correct.

<html>
<head>
<script src="https://ajax.googleapis.com/ajax/libs/jquery/3.3.1/jquery.min.js"></script>
<link rel="stylesheet" type="text/css" href="https://cdn.datatables.net/v/dt/dt-1.10.16/datatables.min.css">
<script type="text/javascript" charset="utf8" src="https://cdn.datatables.net/v/dt/dt-1.10.16/datatables.min.js"></script></script>
<script>

/* Formatting function for row details - modify as you need */
function format ( d ) {
    // `d` is the original data object for the row
    return '<table cellpadding="5" cellspacing="0" border="0" style="padding-left:50px;">'+
        '<tr>'+
            '<td>Full name:</td>'+
            '<td>'+d.deviceId+'</td>'+
        '</tr>'+
        '<tr>'+
            '<td>Extension number:</td>'+
            '<td>'+d.cameraId+'</td>'+
        '</tr>'+
        '<tr>'+
            '<td>Extra info:</td>'+
            '<td>And any further details here (images etc)...</td>'+
        '</tr>'+
    '</table>';
}

$(document).ready(function() {
    var table = $('#example').DataTable( {
        "ajax": 'https://api.myjson.com/bins/16lp6',
        scrollY:        250,
    	deferRender:    true,
    	scroller:       true,
        "columns": [
            {
                "class":          'details-control',
                "orderable":      false,
                "data":           null,
                "defaultContent": ''
            },
            { "data": "name" },
            { "data": "position" },
            { "data": "office" },
            { "data": "salary" },
            { "data": "extn", "visible": false }
            
        ],
        "order": [[1, 'asc']]
    } );

    // Add event listener for opening and closing details
    $('#example tbody').on('click', 'td.details-control', function(){
        var tr = $(this).closest('tr');
        var row = table.row( tr );

        if(row.child.isShown()){
            // This row is already open - close it
            row.child.hide();
            tr.removeClass('shown');
        } else {
            // Open this row
            row.child(format(row.data())).show();
            tr.addClass('shown');
        }
    });

    // Handle click on "Expand All" button
    $('#btn-show-all-children').on('click', function(){
        // Enumerate all rows
        table.rows().every(function(){
            // If row has details collapsed
            if(!this.child.isShown()){
                // Open this row
                this.child(format(this.data())).show();
                $(this.node()).addClass('shown');
            }
        });
    });

    // Handle click on "Collapse All" button
    $('#btn-hide-all-children').on('click', function(){
        // Enumerate all rows
        table.rows().every(function(){
            // If row has details expanded
            if(this.child.isShown()){
                // Collapse row details
                this.child.hide();
                $(this.node()).removeClass('shown');
            }
        });
    });
});

</script>
<style>
td.details-control {
    background: url('https://cdn.rawgit.com/DataTables/DataTables/6c7ada53ebc228ea9bc28b1b216e793b1825d188/examples/resources/details_open.png') no-repeat center center;
    cursor: pointer;
}
tr.shown td.details-control {
    background: url('https://cdn.rawgit.com/DataTables/DataTables/6c7ada53ebc228ea9bc28b1b216e793b1825d188/examples/resources/details_close.png') no-repeat center center;
}
#btn-show-all-children{
color: black;
width: 49.5%;
border-radius: 2px;
background-color: #AD1625;
}
#btn-hide-all-children{
color: black;
width: 49.5%;
border-radius: 2px;
background-color: Green;
}
table, th , td  {
  border: 2px solid black;
  border-collapse: collapse;
  padding: 5px;
}
th{
bgcolor="#FF0000";
background-color: #6b6767;
color:white;
}
td{
background-color: #F1F1F1;
}
td {
    background-color: #3e3b3b;
    color: white;
}
table.dataTable.display tbody tr.odd>.sorting_1, table.dataTable.order-column.stripe tbody tr.odd>.sorting_1 {
    background-color: #5a5757;
    color: white;
}

table.dataTable.display tbody tr.even>.sorting_1, table.dataTable.order-column.stripe tbody tr.even>.sorting_1 {
    background-color: #5a5757;
    color: white;
}
div.dataTables_scrollBody>table>tbody>tr>td {
    vertical-align: middle;
    background-color: #5a5757;
    color: white;
}
td {
    background-color: #3e3b3b;
    color: white;
}
table.dataTable.display tbody tr.odd>.sorting_1, table.dataTable.order-column.stripe tbody tr.odd>.sorting_1 {
    background-color: #5a5757;
    color: white;
}

table.dataTable.display tbody tr.even>.sorting_1, table.dataTable.order-column.stripe tbody tr.even>.sorting_1 {
    background-color: #5a5757;
    color: white;
}
div.dataTables_scrollBody>table>tbody>tr>td {
    vertical-align: middle;
    background-color: #5a5757;
    color: white;
}
.nr-dashboard-theme .nr-dashboard-template ::-webkit-scrollbar {
    height: 12px;
    width: 12px;
    background: #820f0f;
}
.nr-dashboard-theme .nr-dashboard-template ::-webkit-scrollbar-thumb {
    background: #eadede;
    -webkit-border-radius: 1ex;
    -webkit-box-shadow: 0px 1px 2px rgba(0, 0, 0, 0.75);
}
</style>
</head>
<body>
<button id="btn-show-all-children" type="button">Expand All</button>
<button id="btn-hide-all-children" type="button">Collapse All</button>
<hr>
<table id="example" class="display" cellspacing="0" width="100%">
    <thead>
        <tr>
			<th></th>
            <th>Name</th>
            <th>Position</th>
            <th>Office</th>
            <th>Salary</th>
        </tr>
    </thead>
    
</table>
</body>
</html>

If you are using a ui_template you can turn off the Node-RED theme in templates on the Dashboard Site tab