auto import from //depot/cupcake/@135843
diff --git a/docs/instruction-formats.css b/docs/instruction-formats.css
new file mode 100644
index 0000000..ee23c5c
--- /dev/null
+++ b/docs/instruction-formats.css
@@ -0,0 +1,129 @@
+h1 {
+ font-family: serif;
+ color: #222266;
+}
+
+h2 {
+ font-family: serif;
+ border-top-style: solid;
+ border-top-width: 2px;
+ border-color: #ccccdd;
+ padding-top: 12px;
+ margin-top: 48px;
+ margin-bottom: 2px;
+ color: #222266;
+}
+
+h3 {
+ font-family: serif;
+ color: #222266;
+}
+
+@media print {
+ table {
+ font-size: 8pt;
+ }
+}
+
+@media screen {
+ table {
+ font-size: 10pt;
+ }
+}
+
+table th {
+ font-family: sans-serif;
+ background: #aaaaff;
+}
+
+table {
+ border-collapse: collapse;
+}
+
+table td {
+ font-family: sans-serif;
+ border-top-style: solid;
+ border-bottom-style: solid;
+ border-width: 1px;
+ border-color: #aaaaff;
+ padding-top: 4px;
+ padding-bottom: 4px;
+ padding-left: 2px;
+ padding-right: 2px;
+ background: #eeeeff;
+}
+
+
+/* the mnemonic guide */
+
+table.letters {
+ margin-top: 24px;
+ margin-bottom: 24px;
+ margin-left: 48px;
+ margin-right: 48px;
+}
+
+table.letters td:first-child {
+ font-family: monospace;
+ width: 10%;
+ text-align: center;
+}
+
+table.letters td:first-child + td {
+ width: 10%;
+ text-align: center;
+}
+
+table.letters td:first-child + td + td {
+ width: 80%;
+}
+
+
+/* the formats, per se */
+
+table.format {
+ background: #aaaaaa;
+ border-collapse: collapse;
+ margin-top: 24px;
+ margin-bottom: 24px;
+ margin-left: 48px;
+ margin-right: 48px;
+}
+
+table.format td {
+ font-family: monospace;
+}
+
+table.format td + td i {
+ font-family: sans-serif;
+}
+
+table.format td sub {
+ font-family: sans-serif;
+}
+
+table.format td sub {
+ font-family: sans-serif;
+ font-style: italic;
+ font-size: 70%
+}
+
+table.format th:first-child {
+ width: 28%;
+}
+
+table.format th:first-child + th {
+ width: 5%;
+}
+
+table.format th:first-child + th + th {
+ width: 45%;
+}
+
+table.format th:first-child + th + th + th {
+ width: 22%;
+}
+
+table.format p {
+ margin-bottom: 0pt;
+}
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