* { 
  box-sizing: border-box;
}

body { 
  background-color: #f4f4f4; 
  font-family: Arial, Helvetica, sans-serif;
  display: flex;
  flex-direction: column; 
  align-items: center;
  min-height: 100vh;
  margin: 0;
}

.container { 
  display: flex; 
  padding: 20px; 
  margin: 0 auto; 
  max-width: 100%; 
  width: 800px; 
}

aside { 
  padding: 10px 20px; 
  width: 250px; 
  border-right: 1px solid #111; 
}

button { 
  cursor: pointer;
  background-color: #fff; 
  border: solid 1px #111; 
  border-radius: 5px; 
  width: 100%; 
  padding: 10px; 
  margin-bottom: 20px;
  font-weight: bold; 
  font-size: 14px;
}

main { 
  flex: 1;
  padding: 10px 20px;
} 

h2 { 
  border-bottom: 1px solid #111;
  padding-bottom: 10px; 
  display: flex; 
  justify-content: space-between;
  font-weight: 300;
  margin: 0 0 20px;
}

h3 { 
  background-color: #fff;
  border-bottom: 1px solid #111;
  padding: 10px; 
  display: flex; 
  justify-content: space-between;
  font-weight: 300;
  margin: 20px 0 0;
}

.person { 
  display: flex; 
  justify-content: space-between; 
  font-size: 20px; 
  margin-bottom: 10px;
}