* {
  padding: 0;
  margin: 0;
}

body {
  padding: 0;
  margin: 0;
  -moz-box-sizing: border-box;
       box-sizing: border-box;
  font-family: Microsoft YaHei;
}

a {
  text-decoration: none;
}

button {
  cursor: pointer;
}

input {
  outline: none;
}