styles.css

:root {
  --shadow: #ff295e;
  --background: #35363d;
  --text-color: #fff;
}

@import url('https://fonts.googleapis.com/css2?family=Quicksand:wght@600;700&display=swap');
/*  */

*, *::before, *::after {
  box-sizing: border-box;
  -webkit-box-sizing: border-box;
  -moz-box-sizing: border-box;
}

* {
  margin: 0;
  padding: 0;
}

html {
  font-size: 62.5%;
  -webkit-text-size-adjust: 100%;
  -ms-text-size-adjust: 100%;
}

body {
  background-color: var(--background);
  background-image: url(./img/Taieri.svg);
  background-repeat: no-repeat;
  background-size: cover;
  background-position: center;
  font-family: 'Quicksand', sans-serif;
  font-size: 2rem;
  color: var(--text-color);
  font-weight: 600;
  text-rendering: optimizeLegibility;
  position: relative;
  display: flex;
  justify-content: center;
  align-items: center;
  height: 100vh;
}

h1 {
  text-align: center;
  font-weight: 700;
}

img {
  height: 100%;
  width: 100%;
  -o-object-fit: cover;
  object-fit: cover;
  cursor: pointer;
  outline: none;
}

.main {
  height: 90%;
  width: 700px;
  background-color: var(--background);
  border: 2px solid var(--shadow);
  border-radius: 4px;
  display: flex;
  flex-direction: column;
  justify-content: space-around;
}

.main-head {
  max-width: 700px;
}

.main-box, .main-options__container {
  padding: 0 10px;
}

.main-box {
  height: 100px;
  margin: 40px 0;
  text-align: center;
  line-height: 1.5;
  display: flex;
  align-items: center;
  justify-content: center;
}

h2 {
  text-align: center;
  margin: 40px 0;
}

.main-options__container {
  display: grid;
  grid-auto-flow: column;
  column-gap: 10px;
  justify-content: space-around;
  align-items: center;
}

.main-options__container--img {
  display: flex;
  flex-direction: column;
  justify-content: space-around;
  align-items: center;
}

.main-options__container--img img {
  max-height: 150px;
  max-width: 150px;
}

figcaption {
  margin-top: 20px;
  width: 53px;
}

@media only screen and (min-width:600px) {
  .main-box {
    width: 60%;
    align-self: center;
  }
}