html
{ height: 100%;}

*
{ margin: 0;
  padding: 0;}

body
{ font: normal 1.4em 'trebuchet ms', arial, sans-serif;
  background-color: black;
  color: white;}

h1 { 
font: bold 150% 'century gothic', arial, sans-serif;
padding: 15px 0 5px 0;
text-align: center;}

h2 { 
font: bold 125% 'century gothic', arial, sans-serif;
padding: 15px 0 5px 0;}

h3 { 
font: bold 125% 'century gothic', arial, sans-serif;
padding: 15px 0 5px 0;}

h4 { 
font: bold 80% 'century gothic', arial, sans-serif;
padding: 15px 0 5px 0;
text-align: center;}

a:link {
  color: slateblue;
}

a:visited {
  color: orangered;
}

.maincontent {
    margin-right: 5%;
    margin-left: 5%;
}

img {
    max-width: 100%;
    height: auto;
}

figure {
  text-align: center;
  font-style: italic;
  font-size: smaller;
  text-indent: 0;
  margin: 0.5em;
  padding: 0.5em;
}

iframe {
    display: block;
    border-style:none;
    margin: auto;
}

.footer {
   
    text-align: center;
}