body {
  font-family: sans-serif;
  margin: 40px;
  color: #333;
}
section {
  margin-bottom: 3em;
}
p {
  margin-top: 0.25em;
  margin-bottom: 0.5em;
}
header {
  display: flex;
  justify-content: space-between;
  margin-bottom: 40px;
}
h1 {
  margin: 0;
  font-size: 2em;
}
.company,
.client {
  margin-bottom: 20px;
}
table {
  width: 100%;
  border-collapse: collapse;
  margin-bottom: 20px;
}
table,
th,
td {
  border: 1px solid #ccc;
}
th,
td {
  padding: 10px;
  text-align: left;
}
th {
  background-color: #f2f2f2;
}
tfoot td {
  font-weight: bold;
}
h2 {
  margin-top: 40px;
}
article {
  margin-bottom: 20px;
}
footer {
  margin-top: 40px;
  font-size: 0.9em;
  text-align: center;
  color: #666;
}
.totals {
  float: right;
  width: 300px;
  margin-top: -15px;
}
.totals table {
  border: none;
  margin: 0;
}
.totals td {
  border: none;
  padding: 5px 10px;
  text-align: right;
}