The provided HTML code is a complex layout with many nested elements, but I'll try to identify the main issue.
The main problem is that there are duplicate `class` attributes for the same element. For example:
```html
<div class="gv-grid-cell">
<div class="gv-grid-cell-inner">
<div class="gv-grid-cell-image-container"></div>
<div class="gv-cell-info"></div>
</div>
</div>
<div class="gv-grid-cell">
<div class="gv-grid-cell-inner">
<div class="gv-grid-cell-image-container"></div>
<div class="gv-cell-info"></div>
</div>
</div>
```
This is unnecessary and can cause issues with CSS selectors, JavaScript events, and other functionality. It's generally a good practice to use unique class names or IDs for each element.
Additionally, there are many duplicate elements (e.g., `figure`, `figure>`, `figure>`, etc.) which can be simplified using a single container element and child elements.
Here is an example of how the code could be refactored:
```html
<figure>
<div class="gv-container">
<!-- Grid layout content -->
</div>
</figure>
<div id="gv-fixed-btn-container" class="gv-footer fixed-btn-container">
<button id="toggle-view-overlay-btn">Toggle View Overlay</button>
</div>
<div id="gv-footer-photo-credit" class="gv-footer photo-credit"></div>
```
This refactored code removes the unnecessary duplicate elements and simplifies the layout. However, without more context or information about the original HTML structure, it's difficult to provide a complete solution.
The main problem is that there are duplicate `class` attributes for the same element. For example:
```html
<div class="gv-grid-cell">
<div class="gv-grid-cell-inner">
<div class="gv-grid-cell-image-container"></div>
<div class="gv-cell-info"></div>
</div>
</div>
<div class="gv-grid-cell">
<div class="gv-grid-cell-inner">
<div class="gv-grid-cell-image-container"></div>
<div class="gv-cell-info"></div>
</div>
</div>
```
This is unnecessary and can cause issues with CSS selectors, JavaScript events, and other functionality. It's generally a good practice to use unique class names or IDs for each element.
Additionally, there are many duplicate elements (e.g., `figure`, `figure>`, `figure>`, etc.) which can be simplified using a single container element and child elements.
Here is an example of how the code could be refactored:
```html
<figure>
<div class="gv-container">
<!-- Grid layout content -->
</div>
</figure>
<div id="gv-fixed-btn-container" class="gv-footer fixed-btn-container">
<button id="toggle-view-overlay-btn">Toggle View Overlay</button>
</div>
<div id="gv-footer-photo-credit" class="gv-footer photo-credit"></div>
```
This refactored code removes the unnecessary duplicate elements and simplifies the layout. However, without more context or information about the original HTML structure, it's difficult to provide a complete solution.