Align multiple images & text horizontally - html

Question

I've searched and tried several different suggestions for this, but nothing is working.
I am trying to horizontally center 3 images with a caption underneath. Pretty new to CSS. Thanks for your help in advance!
#container {
margin: auto;
width: 1190px;
padding-top: 40px;
padding-bottom: 40px;
text-align: center;
}
.box {
display: block;
margin: 0px;
white-space: nowrap;
}
.box img {
display: inline-block;
margin: 0px;
padding: 0px;
vertical-align: middle;
}
.box p {
position: relative;
width: 100%;
top: 12px;
z-index: 2;
text-align: center;
font-size: 1.5em;
left: 15px;
}
.clear {
clear: both;
}
.wrapper {
margin: 0 auto;
padding: 0 10px;
width: 1190px;
}
L:
<div id="container">
<div class="wrapper">
<h3>Heading Here</h3>
</div>
<div class="box">
<a href="#">
<img src="images/features-icon-1.png" alt=" ">
<p>Option 1</p>
</a>
<a href="#">
<img src="images/features-icon-2.png" alt=" ">
<p>Option 2</p>
</a>
<a href="#">
<img src="images/features-icon-3.png" alt=" ">
<p>Option 3</p>
</a>
</div>
<div class="clear"></div>
</div>

Answer 1

You were just missing a container wrapper for your content.
I have added a div to wrap your image, text & link.
Also changes .box img to .box div
That's all you were missing.
#container {
margin: auto;
width: 1190px;
padding-top: 40px;
padding-bottom: 40px;
text-align: center;
}
.box {
display: block;
margin: 0px;
white-space: nowrap;
}
.box div {
display: inline-block;
margin: 0px;
padding: 0px;
vertical-align: middle;
}
.box p {
position: relative;
width: 100%;
top: 12px;
z-index: 2;
text-align: center;
font-size: 1.5em;
left: 15px;
}
.clear {
clear: both;
}
.wrapper {
margin: 0 auto;
padding: 0 10px;
width: 1190px;
}
<div id="container">
<div class="wrapper">
<h3>Heading Here</h3>
</div>
<div class="box">
<div>
<a href="#">
<img src="images/features-icon-1.png" alt=" ">
<p>Option 1</p>
</a>
</div>
<div>
<a href="#">
<img src="images/features-icon-2.png" alt=" ">
<p>Option 2</p>
</a>
</div>
<div>
<a href="#">
<img src="images/features-icon-3.png" alt=" ">
<p>Option 3</p>
</a>
</div>
</div>
<div class="clear"></div>
</div>