body{
  margin: 0;
}
main{
  width: 100vw;
}
main > *{
  padding: 0.8em;
  color: slateblue;
  background-color: lavender;
}
.sec-2 div{
  /* display: none; */
  margin: 1em;
  padding: 1.6em;
  line-height: 2.4em;
  font-family: serif;
  color: #555;
  background-color: white;
}
main{
  display: grid;
  grid-template-columns: 200px 1fr 300px;
  grid-template-rows: 80px 200px auto 200px;
}
nav{
  grid-column: 1 / -1;
}
footer{
  grid-column: 1 / -1;
}
aside{
  grid-row: 2 / 4;
}
.sec-1{
  grid-column: 2 / -1;
}