.main-content {
  padding: 20px;
  font-size: 14px;
}
h1 {
  font-size: 23px;
}
h2 {
  font-size: 19px;
}
h3 {
  font-size: 15px;
}
h1,
h2,
h3 {
  font-weight: 500;
  margin: 20px 0 10px;
}
h1:first-of-type {
  margin-top: 0;
}
a,
a:active,
a:hover,
a:focus,
a:visited {
  color: #0073aa;
  outline: 0;
  text-decoration: none;
}
a:hover {
  color: #00a0d2;
}
th,
label {
  font-weight: 600;
}
body {
  margin: 0;
  padding: 0;
  background-color: #f1f1f1;
  color: #333;
  font-family: 'Open Sans', sans-serif;
  font-size: 17px;
}
#divMessage {
  position: absolute;
  padding: 10px 20px;
  width: 100%;
  top: 50%;
  transform: translateY(-50%);
  text-align: center;
  box-sizing: border-box;
}
.loading {
  background-image: url('../images/loading.gif');
  background-position: center;
  background-repeat: no-repeat;
  background-attachment: fixed;
}