style.css

:root {
  font-family: Inter, Avenir, Helvetica, Arial, sans-serif;
  font-size: 16px;
  line-height: 24px;
  font-weight: 400;

}

a {
  font-weight: 500;
  color: #646cff;
  text-decoration: inherit;
}
a:hover {
  color: #535bf2;
}

body {
  margin: 0;
  display: flex;
  place-items: center;
  min-width: 320px;
  min-height: 100vh;
  color: #fff;
}

h1 {
  font-size: 3.2em;
  line-height: 1.1;
}

.logo-gobelins {
  position: absolute;
  bottom: 1.5rem;
  margin-bottom: .5rem;
  right: 20px;
  width: 150px;
  transition: opacity .5s ease-in-out;
}

.logo-gobelins.hide {
  opacity: 0;
}

@media only screen and (max-width: 600px) {
  .logo-gobelins {
    width: 60px;
  }
}

#app {
  margin: 0;
  padding: 0;
  text-align: center;
}

.ref {
  padding: 8px 10px;
  color: aliceblue;
  position: absolute;
  top: 0;
  left: 0;
}

button {
  border-radius: 8px;
  border: 1px solid transparent;
  padding: 0.6em 1.2em;
  font-size: 1em;
  font-weight: 500;
  font-family: inherit;
  background-color: #1a1a1a;
  cursor: pointer;
  transition: border-color 0.25s;
}
button:hover {
  border-color: #646cff;
}
button:focus,
button:focus-visible {
  outline: 4px auto -webkit-focus-ring-color;
}

.consigne {
  position: absolute;
  z-index: 999;
  translate: -50% 0;
  left: 50%;
  bottom: 1.5rem;
  transition: opacity .5s ease-in-out;
}

.consigne.hide {
  opacity: 0;
}