Q:

Bootstrap Image Placement Issue

I am trying to get the 3 images under the main logo to be divided equally and centred, but I am having issue making the images go into the middle of the page with the other elements.
Any help in understanding this would be greatly appreciated

Code below
Website is http://www.horizonarb.co.uk
<!DOCTYPE html>

  
    
    
    
    
    Horizon Arboriculture
<!-- Bootstrap -->
<link href="css/bootstrap.min.css" rel="stylesheet">

<!-- Google Fonts -->
<script src="js/googleFonts.js" type="text/javascript"></script>

<link href='https://fonts.googleapis.com/css?family=Open+Sans|Lobster+Two' rel='stylesheet' type='text/css'>

 <!-- Custom CSS -->
<link href="css/custom.css" rel="stylesheet"></link>

<!-- Font Awesome -->
<link rel="stylesheet" href="css/fontawesome/font-awesome.min.css">
<link rel="stylesheet" href="https://maxcdn.bootstrapcdn.com/font-awesome/4.4.0/css/font-awesome.min.css">

<!-- HTML5 shim and Respond.js for IE8 support of HTML5 elements and media queries -->
<!-- WARNING: Respond.js doesn't work if you view the page via file:// -->
<!--[if lt IE 9]>
  <script src="https://oss.maxcdn.com/html5shiv/3.7.2/html5shiv.min.js"></script>
  <script src="https://oss.maxcdn.com/respond/1.4.2/respond.min.js"></script>
<![endif]-->

 <div class="navbar navbar-default navbar-static-top" style="margin-bottom: 0px; margin-top: 10px;">

    <div class="container">

        <div class="navbar-header">

            <button class="navbar-toggle" data-toggle="collapse" data-target=".navbar-collapse">
                <small>MENU</small>
            </button>

         <a href=""><img src="img/front/HorizonArb_Tree_Transparent.png" class="noResize"></a>

        </div> <!-- class="navbar-header" -->

        <div class="collapse navbar-collapse">

            <ul class="nav nav-pills navbar-right">

                <li class="active"><a href="index.html">Home</a></li>
                <!--
                <li class="dropdown">
                    <a href="" class="dropdown-toggle" data-toggle="dropdown" role="button" aria-haspopup="true" aria-expanded="false">Services <span class="caret"></span></a>
                    <ul class="dropdown-menu">
                      <li><a href="services.html">Crown Thinning</a></li>
                      <li><a href="#">Crown Lifting</a></li>
                      <li><a href="#">Crown Reduction</a></li>
                    </ul>
                </li>-->
                 <li class=""><a href="services.html">Services</a></li>
                <li><a href="contact.html">Contact</a></li>

            </ul>

        </div> <!-- class="collapse navbar-collapse" -->

    </div> <!-- class="container" -->

  </div> <!--  class="navbar navbar-default" -->    

<div class="row">

    <div class="col-md-6 col-sm-6 col-sm-offset-3 col-md-offset-3 center marginTopThirty">

        <img src="img/front/HorizonArb_Transparent.png" width="50%">

    </div>

</div>

<div class="row">

    <div class="col-md-12 col-sm-12 col-xs-12">

        <div class="col-md-4 col-sm-4 col-xs-4 marginTopThirty">

            <img src="img/front/HorizonArb_Transparent.png" width="50%" class="img-responsive">
            <p>Image 1</p>

        </div>

        <div class="col-md-4 col-sm-4 col-xs-4 marginTopThirty">

            <img src="img/front/HorizonArb_Transparent.png" width="50%" class="img-responsive">
            <p>Image 2</p>
        </div>

        <div class="col-md-4 col-sm-4 col-xs-4 marginTopThirty">

            <img src="img/front/HorizonArb_Transparent.png" width="50%" class="img-responsive">
            <p>Image 3</p>
        </div>   

    </div>

</div>

<div class="row">

        <div class="col-md-12 col-sm-12 center marginTopThirty" id="topContainer">

            <div class="col-md-10 col-sm-10 col-sm-offset-1 col-md-offset-1 center">

                <p class="">Horizon Arboriculture is a professional Cheshire based tree surgery company with a small, expertly trained and qualified work force dedicated to providing high quality service and customer care. We are a Construction Health and Safety Scheme approved contractor (CHAS) that provide our services to both domestic and commercial clients. 

NPTC and Lantra qualified staff. £10 million public and employers liability insurance. Free, competitive, no obligation quotes.
            </div>

        </div>

</div>     

<div class="footer">

    <div class="col-md-12 col-sm-12 center marginTopThirty" id="topContainer">

        <small class ="center">Design by </small>

    </div>

</div>      

<!-- jQuery (necessary for Bootstrap's JavaScript plugins) -->
<script src="https://ajax.googleapis.com/ajax/libs/jquery/1.11.3/jquery.min.js"></script>
<!-- Include all compiled plugins (below), or include individual files as needed -->
<script src="js/bootstrap.min.js"></script>

A:

You can (in your CSS):
Set the images' margins to "auto" (margin: auto)
Or:
Set the images to "display: inline-block" and the container to "text-align:center"
Both will center the images in their containers.

