* {
  box-sizing: border-box;
}

html {
  font-size: 62.5%;
}

body {
  background-color: #eeeeef;
  margin: 0;
  padding: 0;
  font-size: 1.6rem;
  display: flex;
  flex-flow: column nowrap;
  align-items: center;
  min-height: 100vh;

  font-family: Arial, Helvetica, sans-serif;
}

h1,
h2,
h3,
h4,
h5,
h6 {
  margin: 0;
}

h1 {
  font-size: 4.8rem;
}

h2 {
  font-size: 2.8rem;
}

h3 {
  font-size: 2.2rem;
}

h4,
h5,
h6 {
  font-size: 1.8rem;
}

.my-slider {
  background-color: #fff;
}

.my-item {
  padding: 0;
  height: 13rem;
  width: 100px;
  flex: 0 0 auto
}

header {
  display: flex;
  flex-flow: column nowrap;
  align-items: center;
  padding: 2rem;
  margin-top: 5rem;
}

#root {
  margin-top: 12rem;
}

footer {
  display: flex;
  flex-flow: column nowrap;
  align-items: center;
  padding: 2em;
  color: #333;
  background-color: hsl(240, 3%, 90%);
  width: 100%;
}

.demo {
  flex: 1 1 auto;
  margin-top: 12rem;
  width: 100%;
  display: flex;
  flex-flow: column nowrap;
  align-items: center;
}

code {
  display: block;
  background: #e5e5e5;
  border: 1px solid rgb(0, 0, 0, .1);
  color: #000;
  border-radius: .5em;
  padding: 2em 3em;
  font-size: smaller;
  width: 100%;
  max-width: 60ch;
  line-height: 1.5;
  margin: 2em 1em;
}