body * {
  box-sizing: border-box;
  flex-shrink: 0;
}
body {
  width: 100%;
  height: 100%;
  padding: 0;
  margin: 0;
}
input {
  background-color: transparent;
  border: 0;
}
button {
  margin: 0;
  padding: 0;
  border: 1px solid transparent;
  outline: none;
  background-color: transparent;
}