html {
  height: 100%;
  box-sizing: border-box;
}

body {
  height: 100%;
  background-color: #fff;
  color: #333;
  font: 1.2em / 1.5 Helvetica Neue, Helvetica, Arial, sans-serif;
  padding: 0;
  margin: 0;
}

* {
  box-sizing: inherit;
}

section {
  height: 100%;
}

.wrapper {
  min-height: 100%;
  display: grid;
  grid-template-rows: auto 1fr auto;
}

.page-header,
.page-footer {
  background-color: rgb(75, 70, 74);
  color: #fff;
  padding: 20px;
}

.page-body {
  padding: 20px;
}