styles.css

/*************/
/* Variables */
/*************/
:root {
  /* Colors */
  --black: #000000;
  --white: #ffffff;
  --gray-100: #aaaaaa;

  /* Fonts */
  --main-font: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Helvetica,
    Arial, sans-serif, "Apple Color Emoji", "Segoe UI Emoji", "Segoe UI Symbol";
}

/**********/
/* Resets */
/**********/
/* https://www.joshwcomeau.com/css/custom-css-reset/ */
*,
*::before,
*::after {
  box-sizing: border-box;
}

* {
  margin: 0;
}

html,
body {
  height: 100%;
  font-family: var(--main-font);
  background-color: var(--black);
  color: var(--white);
}

img,
picture,
video,
canvas,
svg {
  display: block;
  max-width: 100%;
}

ul,
li {
  list-style-type: none;
  margin: 0;
  padding: 0;
}

input,
button,
textarea,
select {
  font: inherit;
}

p,
h1,
h2,
h3,
h4,
h5,
h6 {
  font-size: inherit;
  overflow-wrap: break-word;
}

/* Container */
.container {
  padding: 2.5rem;
}

@media only screen and (min-width: 480px) {
  .container {
    padding: 5rem;
  }
}

/* Section */
.section {
  max-width: 30rem;
  font-size: 1.125rem;
  line-height: 1.3333;
}

/* H1 */
.section h1 {
  font-size: 2rem;
  font-weight: 700;
  letter-spacing: -0.0625rem;
}

/* H2 */
.section h2 {
  font-size: 1.25rem;
  font-weight: 700;
  margin-top: 2rem;
}

/* H3 */
.section h3 {
  font-weight: 700;
  color: var(--white);
}

/* P */
.section p {
  color: var(--gray-100);
  margin-top: 1rem;
}

/* A */
.section a {
  color: var(--white);
}

/* Small */
.section small {
  font-size: 1rem;
}