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

html {
  font-size: 62.5%;
  line-height: 1.25;
}

body {
  font-size: 1.5rem;
  color: #181818;
}

header {
  background: #242424;
  color: #fff;
  padding: .5rem 2rem;
  text-align: center;
}

.footer-version {
  color: #242424;
  font-size: 1.2rem;
  padding: .5rem 1.5rem;
  text-align: center;
}

.footer-copy {
  bottom: 0;
  color: #242424;
  font-size: 1rem;
  position: fixed;
  text-align: right;
  width: 100%;
  display: inline-block;
  margin: 0 .5rem;
  opacity: .5;
  right: 0;
  transition: .2s;
  z-index: -1;
  &:hover {
    opacity: .75;
    transition: .5s;
  }
}

main {
  background: #fff;
  border-radius: .5rem;
  box-shadow: 0 .2rem .5rem rgba(0, 0, 0, .1);
  margin: 2rem auto 0;
  max-width: 80rem;
  padding: 2rem;
}

.todo-list {
  background-color: #e5defb;
  border-radius: 1rem;
  padding: 2rem 3.5rem 2.5rem 5rem;
}

h1 {
  font-feature-settings: "palt";
  font-size: 2.5rem;
}

h2 {
  margin-bottom: 2.5rem;
}

h3 {
  margin-bottom: 1rem;
  margin-top: 2rem;
}