html {
  height:100%; 
  
  background-image: -ms-radial-gradient(center, ellipse closest-corner, #FFFFFF 0%, #10452D 100%);
  background-image: -moz-radial-gradient(center, ellipse closest-corner, #FFFFFF 0%, #10452D 100%);
  background-image: -o-radial-gradient(center, ellipse closest-corner, #FFFFFF 0%, #10452D 100%);
  background-image: -webkit-gradient(radial, center center, 0, center center, 498, color-stop(0, #FFFFFF), color-stop(1, #10452D));
  background-image: -webkit-radial-gradient(center, ellipse closest-corner, #FFFFFF 0%, #10452D 100%);
  background-image: radial-gradient(ellipse closest-corner at center, #FFFFFF 0%, #10452D 100%);
  
  font-size: 300%;
}

body {
  height: 100%;
}
       
h1 {
  text-align: center; 
  font-family: 'Tangerine', cursive; 
  margin: 0;
}

p {
  margin: 0;
}
 
a {
  padding: 0.3em;
}

.block {
  text-align: center;
}
 
.block:before {
  content: '';
  display: inline-block;
  height: 100%;
  vertical-align: middle;
  margin-right: -0.25em; 
}

.centered {
  display: inline-block;
  vertical-align: middle;
}

.fa-twitter {color: #33CCFF}
.fa-google-plus {color: #C63D2D}
.fa-linkedin {color: #4875B4}
.fa-github {color: #222222}
.fa-instagram {color: #c13584}

.fa:hover {
  color: black; 
  transition: all 1s ease;
}