html,
body {
  margin: 0;
  font-family: Roboto, sans-serif;
  -webkit-font-smoothing: antialiased;
}

.d-flex {
  display: flex;
}

.flex-column {
  flex-direction: column;
}

.flex-wrap {
  flex-wrap: wrap;
}

.flex-grow-1 {
  flex-grow: 1;
}
.flex-grow-2 {
  flex-grow: 2;
}

.container {
  --bs-gutter-x: 1.5rem;
  --bs-gutter-y: 0;
  width: 100%;
  padding-right: calc(var(--bs-gutter-x) * 0.5);
  padding-left: calc(var(--bs-gutter-x) * 0.5);
  margin-right: auto;
  margin-left: auto;
}

@media (min-width: 576px) {
  .container {
    max-width: 540px;
  }
}
@media (min-width: 768px) {
  .container {
    max-width: 720px;
  }
}
@media (min-width: 992px) {
  .container {
    max-width: 960px;
  }
}
@media (min-width: 1200px) {
  .container {
    max-width: 1140px;
  }
}
@media (min-width: 1400px) {
  .container {
    max-width: 1320px;
  }
}

.box {
  display: flex;
  justify-content: center;
  align-items: center;
  width: 16rem;
  height: 10rem;
  margin: 2rem;
  font-size: larger;
  font-weight: bold;
  box-shadow: 0 0.25rem 0.5rem 0 var(--box-shadow-color);
  transition: 0.3s;
  --box-shadow-color: #b0e6bc;
  background-color: #f3fff5;
  text-decoration: none;
}