html {
  font-size: 12px;
}

@media (min-width: 768px) {
  html {
    font-size: 18px;
  }
}


html {
  position: relative;
  min-height: 100%;
}

body {
    margin-bottom: 60px;
}

footer {
    background-color: white;
}

#alert-container {
    z-index: 999;
}

#overlay {
    height: 100%;
    width: 100%;
    position: absolute;
    top: 0px;
    left: 0px;
    z-index: 99999;
    background-color: gray;
    filter: alpha(opacity=90);
    -moz-opacity: 0.90;
    opacity: 0.90;
}

    #overlay h2 {
        position: fixed;
        margin-left: 40%;
        top: 40%;
    }