1. 1 core/misc/print.css
  2. 1 core/themes/bartik/css/print.css
  3. 1 core/themes/basis/css/print.css
body {
  margin: 1em;
  background-color: #fff;
}
[dir="rtl"] body {
  direction: rtl;
}
th {
  text-align: left; /* LTR */
  color: #006;
  border-bottom: 1px solid #ccc;
}
[dir="rtl"] th {
  text-align: right;
}
tr.odd {
  background-color: #ddd;
}
tr.even {
  background-color: #fff;
}
td {
  padding: 5px;
}
#menu {
  visibility: hidden;
}
#main {
  margin: 1em;
}

File

core/misc/print.css