Bootstrap responsive image will not stay in center - html

Question

I'm trying to line up three pictures within a bootstrap grid. All of the images were centered, which is what I'm trying to, before I added a img-responsive class to one of the images. I do however want the images to be responsive while also making them a tiny bit larger than they are already. Tried numerous things such as "width: 200%;" however without success
How it looks
I created a "center-all" class within my css that should center all the three of them, and it did work, just until I added the img-responsive class to the red one. The class was not added to any of the other images.
.center-all {
text-align: center;
align-items: center;
align-content: center
vertical-align: center;
}
JSFiddle
https://jsfiddle.net/8a6ee7f5/
Images doesn't work in Fiddle ofc.
What I want to achieve:
I want the images to be 2 times larger than what they currently are and I want them to be responsive while still keeping them centered.
Thanks in advance!

Answer 1

I found the answer to my question(s).
When adding the img-responsive class to the image it moves to the left. By adding "center-block" to the class to the image it should stay in the center.
<img src="..." class="img-responsive center-block">
Now I just need to find the answer on how to upscale my pictures to 200%.
EDIT:
I found the following to upscale my images:
CSS
.wrapper {
width: 40%;
}
and added that to my image class.
HTML
<img src="..." class="img-responsive center-block wrapper">
And that fixed it.

Answer 2

So bootstrap already has an element centering class called .text-center you can just add this class to the row wrapping your items and everything in that row will be centered. Then instead of using .img-responsive you can add a width to the image instead or give the image a percentage width. It will maybe look something like the following hopefully this is what you are looking for:
Here is a fiddle Updated Fiddle
note: I have added a border-radius of 50% to your images because I assume you want them to be round. If you want to use 100px you can change it back.
Css:
#values img{
-moz-border-radius: 50%;
-webkit-border-radius: 50%;
border-radius: 50%;
width: 80%;
}
#val1 {
background-color: #792c24;
}
#val2 {
background-color: #4f5e6d;
}
#val3 {
background-color: #665e25;
}
Html:
<div class="container" id="values">
<h3 class="fancy">Values</h3>
<div class="row text-center">
<div class="col-sm-4">
<h4>Independent</h4>
<img id="val1" src="http://placehold.it/300x300">
</div>
<div class="col-sm-4">
<h4>Team Player</h4>
<img id="val2" src="http://placehold.it/300x300">
</div>
<div class="col-sm-4">
<h4>Dedicate</h4>
<img id="val3" src="http://placehold.it/300x300">
</div>
</div>
</div>