how to change class in svg?

Question

JavaScript

Good day everyone!
Tell me how to change the class inside the object svg, no matter what, js or (css if possible).

<div class="panel-image-svg">
    <div class="panel-image-item">
        <object type="image/svg+xml" data="theme/images/svg/figura_22.svg" class="test"></object>
    </div>
</div>

Answer 1

https://benfrain.com/selecting-svg-inside-tags-wit...
Features: when our object is loaded, we write its context to a variable, and work with it as with an inline esvege