true/false field to show and hide div

Hello, a simple beginner’s question:

I have a true/false custom field. When it’s true, a div called “logodiv” should be visibile. When it’s false, not.

What code is necessary in the PHP file?

My div code has no content:

<div id="logodiv">

</div>

https://www.ads-software.com/plugins/advanced-custom-fields/