body {
  margin: 0px;
  font-family: 'Roboto';
  background-color: #d0d0d0;
  line-height: 1.5;
}
header {
  background-color: #fff0d3;
}
footer {
  background-color: #c6ddff;
}
#app {
  background-color: #f7f7ff;
}
footer #powered-by {
  background-color: #000000;
  padding: 1%;
  display: block;
}
footer #powered-by span {
  text-align: center;
  color: #ffffff;
  font-size: 1vw;
  line-height: 1.2;
  display: block;
}
footer #powered-by span a {
  color:#ffffff;
  text-decoration: none;
}