html {
  font-size: 3.75vw;
  line-height: 1.5;
}
body {
  margin: 0;
}
@media screen and (min-width: 640px) {
  html {
    font-size: 16px;
  }
}
* {
  box-sizing: border-box;
}
ul, ol {
  list-style: none;
  margin: 0;
  padding: 0;
}
li {
  margin: 0;
  padding: 0;
}
p {
  margin: 0;
  padding: 0;
}
label {
  cursor: pointer;
}