How to use display:block properly with buttons in css? - html

Question

When I use display:block it doesn't want to work which was working before. When I inspect it shows me strike through on display:block. Now the buttons are positioned on the right side of the col, I'd need them to be positioned in the middle under the image.
html
<div class="sectionLight">
<div class="row">
<div class="col-sm-12">
<div class="row">
<div class="col-sm-12 col-lg-4">
<img class="img-fluid imgCenter" src="images/square.png">
<div class="row">
<div class="col-sm-12">
<button type="button" class="btn btn-danger btn-lg btnCenter" data-toggle="modal" data-target=".square-modal-lg">Prime</button>
</div>
</div>
</div>
<div class="col-sm-12 col-lg-4">
<img class="img-fluid imgCenter" src="images/fibo.png">
<div class="row">
<div class="col-sm-12">
<button type="button" class="btn btn-danger btn-lg btnCenter" data-toggle="modal" data-target=".fibo-modal-lg">Fibo</button>
</div>
</div>
</div>
<div class="col-sm-12 col-lg-4">
<img class="img-fluid imgCenter" src="images/square_copy.png">
<div class="row">
<div class="col-sm-12">
<button type="button" class="btn btn-danger btn-lg btnCenter" data-toggle="modal" data-target=".prime-modal-lg">Square</button>
</div>
</div>
</div>
</div>
</div>
</div>
</div>
CSS
.btnCenter {
display: block;
margin: auto;
margin-top: 15px;
margin-bottom: 20px;
width: 50%;
}

Answer 1

You probably have included another css script that overwrites your current one.
You can try to make it !important. If that doesnt work, you might have to make your selector more spesific than the one currently overwriting it.
.btnCenter {
display: block !important;
margin: auto;
margin-top: 15px;
margin-bottom: 20px;
width: 50%;
}
You can debug this in the dev-tools. See the example image below:
In this example, primary.css is higher in the css hierarchy (meaning the file primary.css is included later than stacks.css) Therefore, it will overwrite the selector.