*, 
*:after,
*:before {
  margin: 0;
  padding: 0;
  box-sizing: border-box;
  text-decoration: none;
}

body {
  font-size: 100%;
  list-style-type: none;
}

button {
  cursor: pointer;
}

button, input {
  background: none;
  border: 0;
  outline: none;
}