@charset "utf-8";
/* CSS Document */

* {
	box-sizing: border-box;
	margin: 0;
	padding: 0;
	a text-decoration: none; 
}

body, html {
  font-family: sans-serif;
  color: #fff;
}

h1 {
  text-align: center;
  color: #333233;
  margin-bottom: 1.5em;
}

.wrapper {
  display: grid;
  grid-template-columns: 1fr;
  grid-template-rows: auto;
  max-width: 960px;
  margin: 0 auto;
  background: #cac9ca;
  text-align: center;
}
  .header {
    width: 100%;
    height: 200px;
    background: #ff70e7;
  }
  .sidebox-1 {
    width: 100%;
    height: 200px;
    background: #F16D7E;
  }

  .sidebox-2 {
    width: 100%;
    height: 200px;
    background: #f0c40f;
  }
  .main {
    width: 100%;
    height: 400px;
    background: #333233;
    display: flex;
}
  .main div{
    width: 32%;
    background: #222 ;
    border: 1px #555 solid;
    margin: 1em;
    padding: .5em;
  }

  .footer {
    width: 100%;
    height: 200px;
    background: #2b9388;
}

@media (min-width: 768px) {
  .wrapper {
      grid-template-columns: 1fr 1fr 1fr;
      grid-template-rows: minmax(200px, auto);
	}
	  .header {
      grid-column: 1/4;
      grid-row: 1/2;
    }
    .sidebox-1 {
      grid-column: 3/4;
      grid-row: 2/3;
    }
    .sidebox-2 {
      grid-column: 3/4;
      grid-row: 3/4;
    }
    .main {
      grid-column: 1/3;
      grid-row: 2/4;
    }
    .footer {
      grid-column: 1/4;
      grid-row: 4/5;
    }
  }
}