body {
  height: 100%;
  font-family: Arial, Helvetica, sans-serif
}

.main-content {
  padding-left: 15px;
  padding-right: 15px;
}

.page-header {
  margin-top: 30px;
  padding-bottom: 30px;
}

.footer {
  position: fixed;
  bottom: 0;
  width: 100%;
  height: 50px;
  background-color: #2e6da4;
}

.footer-content {
  color: white;
  text-align: center;
  font-size: small;
  height: 30px;
  padding-top: 5px;
  padding-bottom: 5px;

  > a {
    color: white;
    font-weight: bold;
  }
}

body {
  height: 100%;
  font-family: Arial, Helvetica, sans-serif
}

.main-content {
  padding-left: 15px;
  padding-right: 15px;
}

.page-header {
  margin-top: 25px;
  padding-bottom: 20px;
}

.footer {
  position: fixed;
  bottom: 0;
  width: 100%;
  height: 50px;
  background-color: #2e6da4;
}

.footer-content {
  color: white;
  text-align: center;
  font-size: small;
  height: 30px;
  padding-top: 5px;
  padding-bottom: 5px;

  > a {
    color: white;
    font-weight: bold;
  }
}

Decrease page header's margin/padding to get more available space
Decrease page header's margin/padding to get more available space
