* {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
  font-family: "Lato", sans-serif;
}

body {
  position: relative;
  height: 100vh;
}

/* helpers flex */
.flex {
  display: flex;
}
.f-ai-center {
  align-items: center;
}
.f-jc-sb {
  justify-content: space-between;
}
.f-column {
  flex-flow: column;
}
.f-wrap {
  flex-wrap: wrap;
}

.container {
  width: 80%;
  max-width: 1200px;
  margin: 0 auto;
  
}

header {
  padding: 30px 0;
    width: 80%;
  max-width: 1200px;
  background-color: cyan;
}



nav {
  padding: 20px 0;
  max-width: 1200px;
  background-color: darkorange;
}

a {
  font-size: 0.7rem;
  display: inline-block;
  padding: 10px 15px;
  text-decoration: none;
  text-transform: uppercase;
  background-color: blanchedalmond;
  color: #000;
}


section div article:first-child {
  display: inline-block;
  width: 50%;
  padding-right: 20px;
  background-color: blue;
}

section div article:last-child {
  display: inline-block;
  width: 50%;
  padding-left: 20px;
  background-color: chartreuse;
}



aside div article:first-child {
  width: 70%;
  padding-right: 20px;
  background-color: gold;
}

aside div article:last-child {
  width: 30%;
  padding-left: 20px;
  background-color: rgb(255, 200, 47);
}


footer {
  width: 30%;
  padding-left: 20px;
  background-color: deeppink;
}