@import url("https://fonts.googleapis.com/css2?family=Libre+Baskerville&display=swap");
* {
  padding: 0;
  margin: 0;
  box-sizing: border-box;
  font-family: "Libre Baskerville", serif;
  font-weight: 300;
  background-color: rgb(240, 240, 240);
}
header {
  width: 100%;
  text-align: center;
  padding: 1rem;
}
.btn {
  text-align: center;
  margin: 1em;
}
.btn > button {
  width: 10%;
  height: 10%;
  font-size: 1.4em;
  background: rgb(237, 240, 234);
}
#sentence {
  margin-top: 1rem;
}
div > #sentence {
  text-align: center;
  font-size: large;
  margin: 0 auto;
  width: 75%;
  padding: 1rem;
  border: 1px dotted #000;
}
.container {
  padding: 3rem;
  margin: 1rem;
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  justify-items: center;
}
legend {
  text-align: center;
  background-color: #000;
  color: lavender;
  padding: 1rem;
}

#box {
  margin: 0 auto;
  text-align: center;
  width: 25%;
  padding: 2rem;
  border: 1px solid #000;
}
input[type="color"] {
  cursor: pointer;
}

footer {
  text-align: center;
  position: absolute;
  top: -50px;
}

@media screen and (max-width: 730px) {
  #box {
    width: 75%;
  }
}

@media screen and (max-width: 440px) {
  .container {
    grid-template-columns: 1fr;
    gap: 1rem;
  }
  #box {
    width: 100%;
  }
}

@media screen and (max-width: 260px) {
  fieldset {
    margin: 0px;
  }
  legend {
    padding: 0.8rem;
  }
}