My css reset setting

reset.css

html {
  height: 100%;
}

body {
  margin: 0;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
  height: 100%;
}

ul {
  margin-block-start: 0;
  margin-block-end: 0;
  margin-inline-start: 0;
  margin-inline-end: 0;
  padding-inline-start: 0;
}

a {
  text-decoration: none;
}

h1,
h2,
h3,
h4,
h5,
h6 {
  margin: unset;
}

p {
  margin-block-start: 0;
  margin-block-end: 0;
  margin-inline-start: 0;
  margin-inline-end: 0;
}

* {
  box-sizing: border-box;
}

#root {
  height: 100%;
}