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

body {
  background: #1b1b1b;
}

section.sidebar {
  height: 100vh;
  width: 20%;
  /* background: rgb(33, 33, 33); */
  background: #292929;
  position: fixed;
  display: flex;
  justify-content: center;
  align-items: center;
  transition: 1s ease;
}
.hide {
  transform: translateX(-230px);
}

ul li {
  list-style: none;
  margin-bottom: 10px;
}

ul li a {
  text-decoration: none;
  font-size: 1.2rem;
  font-family: sans-serif;
  color: #fff;
}

.center {
  display: flex;
  justify-content: center;
  align-items: center;
  height: 100vh;
}

.center button {
  padding: 10px 20px;
  font-size: 1rem;
  border: none;
  /* box-shadow: 1px 1px 1px 2px rgb(186, 186, 186); */
  background: #ffa31a;
  color: #fff;
  cursor: pointer;
}