captive.whump.shanti-portal/static/css/captiveportal.css

.button-loading {
  background: #80c8ff url('/static/images/loader.gif') no-repeat 80% 80%;
  cursor: default;
}

#approveButtonDiv img {
  height: 100px;
  width: 100px;
}

.msgbox {
  border-radius: 25px;
  padding: 15px;
}

.msgbox-error {
  background: #ff4000;
}