* {
  box-sizing: border-box;
  font-family: sans-serif;
}
    
html {
  background: #009E4B;
}
    
body {
  background: #fff;
  margin: 0 0 0 52px;
}

h1, h4 {
  text-align: center;
  font-weight: 300;
}
    
p, a {
  color: #555;
  font-size: 14px;
  line-height: 1;
}

.colNav {
  float: left;
  width: 200px;
  padding: 10px;
}
.colContent {
  float: left;
  width: 520px;
  padding: 10px;
}

.row {
  margin: auto;
  width: 850px;
}
    
.row:after {
  content: "";
  display: table;
  clear: both;
}

.blinking {
    animation:blinkingText 4.0s infinite;
      font-size: 22px;
}

@keyframes blinkingText {
    0%{color: #000080;}
    20%{color: #008000;}
    40%{color: #FFFF00;}
    60%{color: #FF0000;}
    100%{color: #FF00FF;}
}

@media screen and (max-width: 800px) {
  .colNav .colContent {
    width: 100%;
  }
  .row {
    width: 100%;
  }
  html {
    background: #FFF;
  }  
  body {
    margin: 0 0 0 0;
  }
}