body {
  font: 1rem/1.5 "PT Sans", Arial, sans-serif;
}

input {
  padding: .5rem 0.5rem;
  line-height: 1.5;
  background-color: #fff;
  border: .075rem solid #ddd;
  border-radius: .25rem;
  box-shadow: inset 0 0.2rem 0.4rem rgba(0,0,0,.05);
  user-select: none;
}

button {
  padding: .5rem 1rem;
  line-height: 1.5;
  color: #555;
  background-color: #eee;
  border: .075rem solid #ddd;
  border-radius: .25rem;
}

.inputs {
  display: flex;
  justify-content: center;
  position: absolute;
  top: calc(50vh - 200px);
  width: 100%;
}

.urls {
  display: flex;
  justify-content: center;
  position: absolute;
  top: calc(50vh + 190px);
  width: 100%;
}

.urls a {
  margin: 0 5px;
}

.main {
  display: flex;
  justify-content: center;
  align-items: center;
  height: 100vh;
  width: 100vw;
  min-width: 1024px;
}

.devices {
  display: grid;
  grid-template-columns: 80px 192px 256px 400px;
  place-content: space-around;
  width: 1024px;
}

.device {
  display: flex;
  justify-content: center;
  align-items: center;
  box-shadow: 0 1px 4px rgba(0, 0, 0, .5);
}

iframe {
  flex: 1 0 auto;
  transform: scale(.25);
}

.smartphone {
  height: 300px;
  width: 80px;
}

.smartphone iframe {
  height: 1200px;
  width: 320px;
}

.tablet {
  height: 300px;
  width: 192px;
}

.tablet iframe {
  height: 1200px;
  width: 768px;
}

.netbook {
  height: 300px;
  width: 256px;
}

.netbook iframe {
  height: 1200px;
  width: 1024px;
}

.desktop {
  height: 300px;
  width: 400px;
}

.desktop iframe {
  height: 1200px;
  width: 1600px;
}