diff --git a/build.gradle b/build.gradle
index 5e5f49c..5497937 100644
--- a/build.gradle
+++ b/build.gradle
@@ -20,6 +20,12 @@ wrapper {
     gradleVersion = '4.4'
 }
 
+javadoc {
+    doLast {
+        new File(destinationDir, 'stylesheet.css').append(file('src/javadoc/stylesheet.css').text)
+    }
+}
+
 task sourcesJar(type: Jar, dependsOn: classes) {
     classifier = 'sources'
     from sourceSets.main.allSource
diff --git a/src/javadoc/stylesheet.css b/src/javadoc/stylesheet.css
new file mode 100644
index 0000000..0549b63
--- /dev/null
+++ b/src/javadoc/stylesheet.css
@@ -0,0 +1,5 @@
+/* Code blocks */
+.block pre {
+    background-color: #F6F8FA !important;
+    padding: 0 1rem !important;
+}