diff --git a/src/css/custom.css b/src/css/custom.css
new file mode 100644
index 0000000..76b4767
--- /dev/null
+++ b/src/css/custom.css
@@ -0,0 +1,16 @@
+@import url("observablehq:default.css");
+@import url("observablehq:theme-air.css");
+@import url("observablehq:theme-alt.css");
+@import url("observablehq:theme-wide.css");
+
+#observablehq-main {
+  min-height: calc(100vh - 15rem);
+}
+
+#observablehq-footer {
+  margin: 1rem auto;
+}
+
+#observablehq-footer nav {
+  max-width: none;
+}
diff --git a/src/css/index.css b/src/css/index.css
index 5b4ec1b..fe9fada 100644
--- a/src/css/index.css
+++ b/src/css/index.css
@@ -1,5 +1,15 @@
 @import url("observablehq:default.css");
 @import url("observablehq:theme-air.css");
+@import url("observablehq:theme-alt.css");
+@import url("observablehq:theme-wide.css");
+
+#observablehq-footer {
+  margin: 1rem auto;
+}
+
+#observablehq-footer nav {
+  max-width: none;
+}
 
 .hero {
   display: flex;
diff --git a/src/css/mapbox.css b/src/css/mapbox.css
index 34402cd..f057f19 100644
--- a/src/css/mapbox.css
+++ b/src/css/mapbox.css
@@ -1,5 +1,7 @@
 @import url("observablehq:default.css");
 @import url("observablehq:theme-air.css");
+@import url("observablehq:theme-alt.css");
+@import url("observablehq:theme-wide.css");
 
 #observablehq-main {
   margin: 0 0;
diff --git a/src/css/onemit2018.css b/src/css/onemit2018.css
index b98b294..93a9c2f 100644
--- a/src/css/onemit2018.css
+++ b/src/css/onemit2018.css
@@ -1,5 +1,15 @@
 @import url("observablehq:default.css");
 @import url("observablehq:theme-air.css");
+@import url("observablehq:theme-alt.css");
+@import url("observablehq:theme-wide.css");
+
+#observablehq-footer {
+  margin: 1rem auto;
+}
+
+#observablehq-footer nav {
+  max-width: none;
+}
 
 .svg-container img {
   position: absolute;
diff --git a/src/design-process.md b/src/design-process.md
index 1fe5355..b268fc4 100644
--- a/src/design-process.md
+++ b/src/design-process.md
@@ -2,6 +2,7 @@
 title: Design Process
 toc: false
 theme: [air, alt, wide]
+style: css/custom.css
 ---
 
 <style>
diff --git a/src/faq.md b/src/faq.md
index 1719d5c..73ad9c8 100644
--- a/src/faq.md
+++ b/src/faq.md
@@ -2,6 +2,7 @@
 title: FAQ & Search Tips
 toc: false
 theme: [air, alt, wide]
+style: css/custom.css
 ---
 
 # Frequently Asked Questions
diff --git a/src/gathering-names.md b/src/gathering-names.md
index 346b78c..5992d58 100644
--- a/src/gathering-names.md
+++ b/src/gathering-names.md
@@ -2,6 +2,7 @@
 title: Gathering the Names
 toc: false
 theme: [air, alt, wide]
+style: css/custom.css
 ---
 
 ```js
diff --git a/src/inception.md b/src/inception.md
index 2bdde13..2def7e0 100644
--- a/src/inception.md
+++ b/src/inception.md
@@ -2,6 +2,7 @@
 title: One.MIT Inception
 toc: false
 theme: [air, alt, wide]
+style: css/custom.css
 ---
 
 ```js
diff --git a/src/name-search.md b/src/name-search.md
index e959e5e..fb76731 100644
--- a/src/name-search.md
+++ b/src/name-search.md
@@ -2,6 +2,7 @@
 title: Name Search Implementation
 toc: false
 theme: [air, alt, wide]
+style: css/custom.css
 ---
 
 <div class= "grid grid-cols-2">
diff --git a/src/special-features.md b/src/special-features.md
index 96879be..0d82a22 100644
--- a/src/special-features.md
+++ b/src/special-features.md
@@ -2,6 +2,7 @@
 title: Design Notes
 toc: false
 theme: [air, alt, wide]
+style: css/custom.css
 ---
 
 <div class= "grid grid-cols-2">
diff --git a/src/team.md b/src/team.md
index 562c764..73634ab 100644
--- a/src/team.md
+++ b/src/team.md
@@ -2,6 +2,7 @@
 title: Team
 toc: false
 theme: [air, alt, wide]
+style: css/custom.css
 ---
 
 <div class= "grid grid-cols-2">
diff --git a/src/wafer-fabrication.md b/src/wafer-fabrication.md
index 7317aec..9264513 100644
--- a/src/wafer-fabrication.md
+++ b/src/wafer-fabrication.md
@@ -2,6 +2,7 @@
 title: Fabricating the Wafer
 toc: false
 theme: [air, alt, wide]
+style: css/custom.css
 ---
 
 <style>