div,
body,
html,
a,
h1,
h2,
h3,
h4,
h5,
h6,
ul,
p,
li,
input,
header,
textarea {
  margin: 0;
  padding: 0;
  box-sizing: border-box;
}
input {
  outline: none;
  padding: 0;
}
.flex-center {
  display: flex;
  align-items: center;
  justify-content: center;
}
ul,
li {
  list-style: none;
}
a {
  color: black;
  text-decoration: none;
}

button,input,select,textarea {
 font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, sans-serif;
}
html {
  font-size: 100px;
 font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, sans-serif;
}
body {
  font-size: 16px;
}