.nav {
  border: 5px solid #ffcc5c;
  display: flex;
}
html {
  box-sizing: border-box;
  font-size: 16px;
}
body {
  background-color: #f2f494;
}
*,
*:before,
*:after {
  box-sizing: inherit;
}
body {
  margin: 0;
  font-family: sans-serif;
  line-height: 1.5;
  margin: 10px;
}
.nav > div {
  padding: 10px;
  text-align: center;
  font-size: 2em;
  color: #f4ed27;
}

.nav > div:nth-child(1) {
  background-color: hsl(330, 82%, 72%);
}

.nav > div:nth-child(2) {
  background-color: #e7f049;
}

.nav > div:nth-child(3) {
  background-color: rgb(163, 221, 236);
}

#footer {
  position: fixed;
  border-style: solid;
  padding: ;
  left: ;
  bottom: ;
  width: ;
  background-color: #d8ded6;
  text-align: center;
}
hr {
  background-color: rgb(243, 159, 218);
  hight: 100px;
  margin: 20px;
}