Question: How to auto set the height?

I want my pdf to automatically fit in a div. and my div height is 100% of my page. when I use the following syntax pdf viewer is half the size of my page: 
```
<pdf-element id="pdf" show-spinner ></pdf-element>
```

For now, I am using the following syntax, but it looks bad on some computers with different resolution: 
```
<pdf-element height=800 id="pdf" show-spinner ></pdf-element>
```