The QR code menu stylesheet

main.css

@import url('https://fonts.googleapis.com/css2?family=Montserrat:wght@400;700&display=swap');

*,
*::before,
*::after {
  margin: 0;
  padding: 0;
  box-sizing: border-box;
}

body,
h1,
h2,
h3,
h4,
h5,
p,
figure,
picture {
  margin: 0;
}

h1,
h2,
h3,
h4,
h5,
h6,
p {
  font-weight: 400;
}

body {
  font-family: "Montserrat", sans-serif;
  font-size: 1.125rem;
  color: #FFFFFF;
  background: #27251F;
  line-height: 1.5;
  min-height: 100vh;
}

.container {
  max-width: 75rem;
  width: 85%;
  margin-inline: auto;
}

section {
  padding: 2em 0;
}

.row {
  text-align: center;
}

h1, p {
  text-align: left;
}

.row__left {
  margin-bottom: 2em;
}

h1 {
  font-weight: 700;
  margin-bottom: .75em
}

footer {
  position: fixed;
  display: flex;
  align-items: center;
  justify-content: center;
  bottom: 0;
  left: 0;
  width: 100%;
}

@media screen and (min-width: 768px) {
  .row {
    display: flex;
    justify-content: space-between;
    align-items: center;
    min-height: 100vh;
  }

  .row__left {
    margin: 0;
    width: 50%;
  }
}

@media screen and (min-width: 1200px) {
  h1 {
    font-size: 5rem;
    margin-bottom: 0em;
  }

  p {
    font-size: 2rem;
  }

  .row__left {
    width: 60%;
  }
}