HTML elements removed / classes removed after editing WYSIWYG

[cardalda]

after pasting html code below; the editor renders the table in the right colors in WYSIWYG. After typing one character and switching to the Code editor, you can see one DIV has been removed and all class names are removed.
This is tested on v 2.44.12 and used to work in older versions...

<h3>DIV Demo</h3>

<div style="display: flex;justify-content: space-evenly;">
    <div style="background-color:tan;display: flex;flex-direction: column;">
        <table class="db">
            <tbody>
                <tr class="title">
                    <td colspan="2">
                        <div>flow</div>
                    </td>
                </tr>
                <tr class="header">
                    <td>
                        <div>name</div>
                    </td>
                    <td>
                        <div>type</div>
                    </td>
                </tr>
                <tr>
                    <td>
                        <div>id</div>
                    </td>
                    <td>
                        <div>number</div>
                    </td>
                </tr>
            </tbody>
        </table>
    </div>
</div>

for example, change Demo to Demo2 in WYSIWYG mode and switch to code...

<h3>DIV Demo2</h3>

<div>
    <table>
        <tbody>
            <tr>
                <td colspan="2">
                    <div>flow</div>
   ...

[JiHong88]

Classes must start with se- or __se__.
In the next version, the 'allowedClassNames' option will be added.

[cardalda]

Hi mr JiHong,

did you close this for only the class names?
That's only part of the problem ;-)

The inline styles are also gone (I can solve this by adding more "se-" classes"
, and one DIV level has been removed, breaking my custom style; This cannot be solved with classes...

[JiHong88]

Add the "__se__tag" class to the topmost "div".
Then that element will not be checked for consistency.

[JiHong88]

The 2.45.0 version has been updated.
Thank you.