Help center vertically a popup lightbox using CSS only – Upwork

We need someone to help us with our website, for one page of the website.
There is a popup lightbox that appears when clicking a button.
This popup lightbox needs to be centered vertically inside the viewport window.
Right now it is not centered and sometimes displays only a portion of it, or sometimes it is completely disappeared (hidden somewhere on the vertical page).

You will help us debug this popup using only CSS.
You will identify the properties to change or add.
Once found, you will provide us the CSS code to insert.
You won’t be granted access to FTP or the website backend.
Only by using your inspector and changing the CSS, you will be able to do this work.
It will need to work for mobile either and any size of windows (responsive).
It is simple and straightforward.

Budget: $35

Posted On: June 11, 2021 16:29 UTC
Category: Front-End Development
Skills:Website, Website Development, Website Redesign, Responsive Design, CSS, HTML, HTML5

Country: Malaysia

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