<style>
    <!--
		  New Perspectives on HTML and CSS
		  Tutorial 5
		  Case Problem 4

		  conference: Hamilton Conference Center
		  Author: David Katelansky
		  Date:   06/10/2015

		  Filename:         hcc.css		
        -->
</style>	 

*
{
   padding: 0px;
   margin:  0px;
   display: block;
}

header
{
   position: absolute;
   top: 0px;
   text-align: center;
   width: 100%;
   height: 13.45%;   
   background-color: blue;      
}

body
{
   width: 100%;
   height: 100%;
   background-image: url("cityImg.jpg");
   background-position: 0% 0%;
   background-size: cover;   
}

section
{
   position: relative;
   margin-top: 11%;
   float: left;
   width: 30%;   
}

section.leftSide p
{
   text-indent: 10%;
   margin-left: 10%;
   font-size: 1.5em;
   width: 75%;
   text-align: left;
   color: rgb(00, 00, 80);   
}

section.leftSide p:nth-child(1)
{
   color: red;
}

section.leftSide p:nth-child(2)
{
   color: black;    
}

section.leftSide p:nth-child(3)
{
   color: blue;
}

div.center
{
   position: relative;
   margin-top: 10%;
   margin-left: 3%;
   float: left;
   width: 30%; 
}

aside
{
   
   position: relative;
   margin-top: 12%;
   float: right;
   width: 25%; 
}

aside li
{
   list-style: none;
   margin-top: 2%;
   margin-bottom: 2%;
}

aside a
{
   text-decoration: none;
   color: rgb(00, 00, 80);
}

aside a:hover
{
   background-color: pink;
}

/* Two Column layout for the introductory paragraph */
section.leftSide p
{
   -moz-column-count: 2;
   -webkit-column-count: 2;
   column-count: 2;
   
   -moz-column-gap: 20px;
   -webkit-column-gap: 20px;
   column-gap: 20px;
   
   -moz-column-rule: 1px solid black;
   -webkit-column-rule: 2px solid black;
   column-rule: 2px solid black;
}

.vanishingDiv
{
   display: block;
   visibility: hidden;
}

.visibleDiv
{
   visibility: visible;
}

.scrollable
{
   width: 3000px;
}