body {margin:0; font-family: Calibri, Verdana, sans-serif;}


.background {
  background-image: url("pictures/race_start.jpg");
  background-size:contain;
}

.whitespace  {
   max-width:900px;
   margin:auto;
   background:white;
   box-sizing: border-box; 
   padding:10px 30px 30px;
}

.top-margin {
  margin-top:68px;
}

.whitespace h2 {
  font-family: Calibri, Helvetica, sans-serif;
  text-align: center;
}
.whitespace p, .whitespace li {
  font-family: "Century Gothic", Verdana, sans-serif;
  color: #595959;
}
p a, li a {
  text-decoration:none; 
  font-weight:bold;
  color:#00cc00; 
}  
p a:hover, li a:hover {
  text-decoration: underline;
}

[class*="row-"]  {
  box-sizing:border-box;
  margin:0 auto;    
}   

.row-1 {width:100%;}

[class*="row-"]::after {
  content: "";
  display: table;
  clear: both;
}

[class*="col-"] {
  box-sizing:border-box;
  float: left;
  padding: 10px;
}

.col-1 {width: 8.33%;}
.col-2 {width: 16.66%;}
.col-3 {width: 25%;}
.col-4 {width: 33.33%;}
.col-5 {width: 41.66%;}
.col-6 {width: 50%;}
.col-7 {width: 58.33%;}
.col-8 {width: 66.66%;}
.col-9 {width: 75%;}
.col-10 {width: 83.33%;}
.col-11 {width: 91.66%;}
.col-12 {width: 100%;}

@media only screen and (max-width: 768px) {
  /* For mobile phones: */
  [class*="col-"] {
    width: 100%;
  }
}

div.desc {
  padding: 5px;
  text-align: center;
}
#photo  {font: italic 14px Arial, sans-serif;}
#topBtn {
  display: none;
  position: fixed;
  bottom: 20px;
  right: 30px;
  z-index: 99;
  font-size: 18px;
  border: none;
  outline: none;
  background-color: hsl(120, 100%, 45%, 0.7);
  color: white;
  cursor: pointer;
  padding: 15px;
  border-radius: 4px;
}

#topBtn:hover {
  background-color: hsl(0, 0%, 30%, 0.7);
}