html {
  background-color: black;
  color: #fff;
  font-family: "Poppins", sans-serif;
  width: 100%;
  height: 100%;
}

a {
  text-decoration: none;
  color: white;
  font-family: "Poppins", sans-serif;
  font-size: 25px;
  font-weight: bold;
  display: inline-block;
  text-align: center;
}
header {
  border-bottom: 2px solid hotpink;
  text-align: left;
}

#heading {
  font-size: 50px;
  text-decoration: none;
  display: inline;
  color: white;
}

#links {
  display: flex;
  width: 100%;
  text-align: right;
  color: white;
  font-family: "Poppins", sans-serif;
  font-weight: bold;
  font-size: 25px;
  justify-content: right;
}

.field {
  padding: 10px;
  display: inline-block;
}

#center {
  display: block;
  margin-left: auto;
  margin-right: auto;
  width: 50%;
}

#columns {
  display: block;
}

.column {
  width: 29%;
  height: 29%;
  padding: 2%;
  display: inline-block;
  vertical-align: middle;
  text-align: center;
}

#icons {
  display: block;
  color: white;
  font-weight: bold;
}

footer {
  display: block;
  text-align: center;
}
@media screen and (min-device-width: 320px) and (max-device-width: 480px) {
  #center {
    display: block;
    width: 100%;
    height: 100%;
    margin: auto;
  }
}
@media only screen and (min-device-width: 768px) and (max-device-width: 1024px) {
  #center {
    display: block;
    width: 100%;
    height: 100%;
    margin: auto;
  }
}