@import url('https://fonts.googleapis.com/css?family=Muli&display=swap');

* {
  box-sizing: border-box;
}
ul {
  list-style: none;
}

body {
  font-family: 'Muli', sans-serif;
  margin: 0;
  color: #efefef;
  overflow-x: hidden;
  background-color: indianred;
}

.container {
  background-color: #333;
  padding: 100px;
  transform-origin: 0 0;
  transition: transform 500ms ease-in;
}

.circle-container {
  width: 200px;
  height: 200px;
  border-radius: 50%;
  background-color: #fff;
  position: fixed;
  top: -100px;
  left: -100px;
  transition: transform 500ms ease-in;
}

#open,
#close {
  position: absolute;
  color: #333;
  border: none;
  background: transparent;
  font-size: 30px;
  cursor: pointer;
}
#open {
  bottom: 35px;
  right: 45px;
}
#close {
  bottom: 55px;
  left: 30px;
}

.content h1 {
  margin: 10px 0;
}
.content p {
  line-height: 1.5;
}
.content small {
  font-style: italic;
}

img {
  width: 100%;
}

nav {
  position: fixed;
  bottom: 0;
  left: 0;
  z-index: -1;
  font-size: 1.2rem;
  line-height: 50px;
  padding: 20px 0;
}

nav li {
  position: relative;
  transition: all 500ms ease-in;
  transform: translateX(-200%);
  opacity: 0;
}

nav li:nth-child(2) {
  transition-delay: 150ms;
}
nav li:nth-child(3) {
  transition-delay: 300ms;
}

nav li i {
  margin-right: 10px;
}