Boostrap grid height and placing row with height: auto - html

Question

I am doing a simple page with a bootstrap grid and I am having some problems with placing the middle row occupying the full height in the middle.
These are the 3 rows: page
I want to place the row with the logo in the middle, but I am having problems with it. I placed height: 100%;, height: auto;. I even placed the container height to 100% and auto and nothing works!
I think there is a concept about bootstrap heigh that I am missing, because its the heigh that I have problems
html:
<div class="container-fluid">
<div class="row">
<div class="col-md-1 col-2">
<img id="menuIcon" (click)="toggleRightSidenav()" onmouseover="this.src='../../../assets/Images/generic/menuIcon_hover.png'" src="/assets/Images/generic/menuIcon.png" onmouseout="this.src='/assets/Images/generic/menuIcon.png'">
</div>
<div class="col-md-10 col-8">
</div>
<div class="col-md-1 col-2">
<img id="helpIcon" routerLink="/guide" onmouseover="this.src='../../../assets/Images/home/helpIconHover.png'" src="/assets/Images/home/helpIcon.png" onmouseout="this.src='/assets/Images/home/helpIcon.png'">
</div>
</div>
<div class="row row align-items-center mh-100" >
<div class= "col-md-12">
<img id="logo" src="/assets/Images/home/Logo.png">
</div>
</div>
<div class="row align-items-center justify-content-around fixed-bottom">
<div class="col-md-2 col-sm-2">
<img id="addButton" routerLink="/addPlayer" onmouseover="this.src='../../../assets/Images/generic/addIcon_hover.png'" src="../../../assets/Images/generic/addIcon.png" onmouseout="this.src='/assets/Images/generic/addIcon.png'" />
</div>
<div class="col-md-2 col-sm-2">
<p>Players Waiting: {{playerWaiting}} </p>
</div>
<div class="col-md-2 col-sm-2">
<p>Listed Players: {{playersListed}}</p>
</div>
<div class="col-md-2 col-sm-2">
<img id="searchButton" routerLink="/search" onmouseover="this.src='../../../assets/Images/generic/searchIcon_hover.png'" src="../../../assets/Images/generic/searchIcon.png" onmouseout="this.src='/assets/Images/generic/searchIcon.png'" />
</div>
</div>
</div>
css:
div{
border: yellow 1px solid;
}
#menuIcon{
width: 100%;
height: auto;
}
#helpIcon{
width: 100%;
height: auto;
}
#addButton{
width: 100%;
height: auto;
max-width: 127px;
}
#searchButton{
width: 100%;
height: auto;
max-width: 127px;
}
https://www.codeply.com/p/Xd0xi5hFNc

Answer 1

Couple of things.
To be able to fill several rows, you'd need a height for the container div.
Current HTML
<div class="container-fluid">
Update as
<div class="container-fluid d-flex vh-100 flex-column">
Now you can easily make your middle div fill the remaining gap by adding a fill-height class.
Current HTML
<div class="row row align-items-center mh-100" >
Update as
<div class="row row align-items-center fill-height">
Add this to your css
.fill-height {
flex: 1;
}
.fixed-bottom {
position: sticky;
}
jsFiddle