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

body {
  font-size: 15px;
  font-family: cursive;
  background-color: rgba(137, 199, 250, 0.747);
}

h1 {
  text-shadow: 2px 1px rgb(181, 211, 73);
  margin-top: 50px;
  display: flex;
  justify-content: center;
}
.container {
  position: relative;
  width: 70%;
  margin: 0px auto;
  margin-top: 60px;
  border-radius: 20px;
  background-color: rgba(115, 189, 250, 0.747);
}
.up {
  padding: 20px 20px 10px 20px;
  display: flex;
  /* justify-content: space-between; */
  gap: 5px;
  align-items: center;
}

.up > div {
  flex: 0 0 50%;
  max-width: 50%;
}
.down {
  padding: 10px 20px 20px 20px;
}

input,
select {
  width: 100%;
}

#res {
  width: 100%;
  /* padding: 20px; */
  height: 20px;
  border: 0.5px solid black;
  background-color: white;
}

.down > div {
  margin-top: 10px;
}

#convert {
  width: 30%;
  margin-top: 20px;
}

.result {
  padding: 20px;
}

footer {
  display: flex;
  justify-content: center;
  margin-top: 80px;
  background-color: black;
  color: white;
}

@media (min-width: 500px) {
  .container {
    width: 60%;
  }
}

@media (min-width: 800px) {
  .container {
    width: 50%;
  }
}