diff --git a/.changes/30477ab1-a876-4671-9c89-fcfc3c6ff3b8.json b/.changes/30477ab1-a876-4671-9c89-fcfc3c6ff3b8.json
new file mode 100644
index 00000000000..79a2c18623e
--- /dev/null
+++ b/.changes/30477ab1-a876-4671-9c89-fcfc3c6ff3b8.json
@@ -0,0 +1,5 @@
+{
+    "id": "30477ab1-a876-4671-9c89-fcfc3c6ff3b8",
+    "type": "documentation",
+    "description": "update API reference doc styling"
+}
\ No newline at end of file
diff --git a/aws-runtime/aws-config/build.gradle.kts b/aws-runtime/aws-config/build.gradle.kts
index 14b58fdd925..694b9b0ba5d 100644
--- a/aws-runtime/aws-config/build.gradle.kts
+++ b/aws-runtime/aws-config/build.gradle.kts
@@ -3,6 +3,7 @@
  * SPDX-License-Identifier: Apache-2.0.
  */
 import aws.sdk.kotlin.gradle.codegen.dsl.smithyKotlinPlugin
+import org.jetbrains.dokka.gradle.DokkaTaskPartial
 
 plugins {
     id("aws.sdk.kotlin.codegen")
@@ -187,3 +188,13 @@ listOf("apiElements", "runtimeElements").forEach {
     }
 }
 
+
+// suppress internal generated clients
+tasks.named<DokkaTaskPartial>("dokkaHtmlPartial") {
+    dokkaSourceSets.configureEach {
+        perPackageOption {
+            matchingRegex.set(""".*\.internal.*""")
+            suppress.set(true)
+        }
+    }
+}
\ No newline at end of file
diff --git a/build.gradle.kts b/build.gradle.kts
index a67071805fe..da14d48f827 100644
--- a/build.gradle.kts
+++ b/build.gradle.kts
@@ -25,7 +25,10 @@ allprojects {
         val pluginConfigMap = mapOf(
             "org.jetbrains.dokka.base.DokkaBase" to """
                 {
-                    "customStyleSheets": ["${rootProject.file("docs/dokka-presets/css/logo-styles.css")}"],
+                    "customStyleSheets": [
+                        "${rootProject.file("docs/dokka-presets/css/logo-styles.css")}",
+                        "${rootProject.file("docs/dokka-presets/css/aws-styles.css")}"
+                    ],
                     "customAssets": [
                         "${rootProject.file("docs/dokka-presets/assets/logo-icon.svg")}",
                         "${rootProject.file("docs/dokka-presets/assets/aws_logo_white_59x35.png")}"
@@ -90,19 +93,21 @@ if (project.prop("kotlinWarningsAsErrors")?.toString()?.toBoolean() == true) {
     }
 }
 
-// configure the root multimodule docs
-tasks.dokkaHtmlMultiModule.configure {
-    moduleName.set("AWS SDK for Kotlin")
+project.afterEvaluate {
+    // configure the root multimodule docs
+    tasks.dokkaHtmlMultiModule.configure {
+        moduleName.set("AWS SDK for Kotlin")
 
-    includes.from(
-        // NOTE: these get concatenated
-        rootProject.file("docs/dokka-presets/README.md"),
-    )
+        includes.from(
+            // NOTE: these get concatenated
+            rootProject.file("docs/dokka-presets/README.md"),
+        )
 
-    val excludeFromDocumentation = listOf(
-        project(":aws-runtime:testing"),
-    )
-    removeChildTasks(excludeFromDocumentation)
+        val excludeFromDocumentation = listOf(
+            project(":aws-runtime:testing")
+        )
+        removeChildTasks(excludeFromDocumentation)
+    }
 }
 
 if (
diff --git a/docs/dokka-presets/css/aws-styles.css b/docs/dokka-presets/css/aws-styles.css
new file mode 100644
index 00000000000..5e99228bc0e
--- /dev/null
+++ b/docs/dokka-presets/css/aws-styles.css
@@ -0,0 +1,9 @@
+/*
+ * Copyright Amazon.com, Inc. or its affiliates. All Rights Reserved.
+ * SPDX-License-Identifier: Apache-2.0.
+ */
+
+
+:root {
+    --color-dark: #232f3e;
+}
diff --git a/docs/dokka-presets/css/logo-styles.css b/docs/dokka-presets/css/logo-styles.css
index ffccc648e7e..e2871d45d3c 100644
--- a/docs/dokka-presets/css/logo-styles.css
+++ b/docs/dokka-presets/css/logo-styles.css
@@ -3,23 +3,20 @@
  * SPDX-License-Identifier: Apache-2.0.
  */
 
-#logo {
-    background-image: url('../images/aws_logo_white_59x35.png');
-    background-color: #232f3e;
-    color: #333;
-    background-size: 59px 35px;
+.library-name a {
+    position: relative;
+    --logo-width: 72px;
+    margin-left: calc(var(--logo-width) + 5px);
 }
 
-body {
-    background-color: #f2f3f3;
+.library-name a::before {
+    content: '';
+    /* path is relative to final asset location output dir */
+    background-image: url('../images/aws_logo_white_59x35.png');
+    background-size: contain;
+    position: absolute;
+    width: 59px;
+    height: 35px;
+    top: -10px;
+    left: calc(-1 * var(--logo-width) - 5px);
 }
-
-/*
- * override markdown samples which appear to have broken and/or minimal style
- */
-.sample-container {
-    padding: 16px;
-    border-radius: 6px;
-    background-color: rgb(280, 280, 280);
-    margin: 12px 0 12px 0;
-}
\ No newline at end of file
diff --git a/services/build.gradle.kts b/services/build.gradle.kts
index dcf6e3637a3..3ddf075b187 100644
--- a/services/build.gradle.kts
+++ b/services/build.gradle.kts
@@ -52,6 +52,15 @@ subprojects {
         }
     }
 
+    tasks.withType<org.jetbrains.dokka.gradle.DokkaTaskPartial>().configureEach {
+        dokkaSourceSets {
+            named("main") {
+                platform.set(org.jetbrains.dokka.Platform.jvm)
+                sourceRoots.from(kotlin.sourceSets.getByName("main").kotlin.srcDirs)
+            }
+        }
+    }
+
     tasks.test {
         useJUnitPlatform()
         testLogging {