html {
  box-sizing: border-box;
  font: 1.2em / 1.5 system-ui;
}

body {
  width: 600px;
  margin: 0 auto;
}

form {
  padding: 0 50px;
}

div {
  display: flex;
  margin-bottom: 20px;
}

label {
  flex: 2;
}

input {
  flex: 4;
  padding: 5px;
}

form button {
  padding: 5px 10px;
  font-size: 1em;
  border-radius: 10px;
  border: 1px solid gray;
}

li {
  margin-bottom: 10px;
}

li button {
  font-size: 0.6rem;
  margin-left: 10px;
}