* {
  box-sizing: border-box;
}

html,
body {
  position: relative;
  height: 100%;
  font-size: 62.5%;
  color: #222;
}

body {
  background-color: #f6f7f8;
  font-family: Helvetica Neue, Helvetica, Arial, sans-serif; 
  color: #222;
  margin: 0;
  padding: 0;
}

a {
  text-decoration: none;
  color: #333;
  -webkit-tap-highlight-color:rgba(0,0,0,0);
}
input {
  border: none;
  outline: none;
  background-color: transparent;
  font-size: 1.5rem;
  box-sizing: border-box;
}
div, span, a {
  box-sizing: border-box;
}

button {
  border: none;
  box-sizing: border-box;
}