Why does my bootstrap carousel have extra space on the sides? - html

Question

I'm fairly certain that this is a simple fix, but I've spent hours on it and am not sure why I haven't been able to fix it. Any help would be greatly appreciated!
My HTML is standard bootstrap:
<div class="row">
<div class="container" id="main">
<div class=col-md-12>
<div id="carousel-example-generic" class="carousel slide" data-ride="carousel" data-interval="5000">
<!-- Indicators -->
<ol class="carousel-indicators">
<li data-target="#carousel-example-generic" data-slide-to="0" class="active"></li>
<li data-target="#carousel-example-generic" data-slide-to="1"></li>
</ol>
<!-- Wrapper for slides -->
<div class="carousel-inner" role="listbox">
<div class="item active">
<img src="*IMAGE*" alt="Power Grid">
<div class="carousel-caption">
<h3>HELLO</h3>
<p>World</p>
</div>
</div>
<div class="item">
<img src="*IMAGE*" alt="Power Grid">
<div class="carousel-caption">
<h3>GOODBYE</h3>
<p>World</p>
</div>
</div>
</div>
</div>
<!-- Controls -->
<a class="left carousel-control" href="#carousel-example-generic" role="button" data-slide="prev">
<span class="glyphicon glyphicon-chevron-left" aria-hidden="true"></span>
<span class="sr-only">Previous</span>
</a>
<a class="right carousel-control" href="#carousel-example-generic" role="button" data-slide="next">
<span class="glyphicon glyphicon-chevron-right" aria-hidden="true"></span>
<span class="sr-only">Next</span>
</a>
</div>
</div>
</div>
Here is my current CSS:
#main.container {
padding: 0 10% 5% 10%;
}
.carousel-inner > .item > img,
.carousel-inner > .item > a > img {
width: 50%;
margin: auto;
}
#carousel-example-generic {
border: #000000 solid 10px;
border-radius: 15px;
}