diff --git a/lib/core-common/src/templates/base-preview-body.html b/lib/core-common/src/templates/base-preview-body.html
index 67250e8c88a2..094286c31b41 100644
--- a/lib/core-common/src/templates/base-preview-body.html
+++ b/lib/core-common/src/templates/base-preview-body.html
@@ -1,196 +1,3 @@
-<style>
-  @-webkit-keyframes sb-rotate360 {
-    from {
-      transform: rotate(0deg);
-    }
-    to {
-      transform: rotate(360deg);
-    }
-  }
-  @keyframes sb-rotate360 {
-    from {
-      transform: rotate(0deg);
-    }
-    to {
-      transform: rotate(360deg);
-    }
-  }
-  @-webkit-keyframes sb-glow {
-    0%,
-    100% {
-      opacity: 1;
-    }
-    50% {
-      opacity: 0.4;
-    }
-  }
-  @keyframes sb-glow {
-    0%,
-    100% {
-      opacity: 1;
-    }
-    50% {
-      opacity: 0.4;
-    }
-  }
-
-  .sb-loader {
-    -webkit-animation: sb-rotate360 0.7s linear infinite;
-    animation: sb-rotate360 0.7s linear infinite;
-    border-color: rgba(97, 97, 97, 0.29);
-    border-radius: 50%;
-    border-style: solid;
-    border-top-color: #646464;
-    border-width: 2px;
-    display: inline-block;
-    height: 32px;
-    left: 50%;
-    margin-left: -16px;
-    margin-top: -16px;
-    mix-blend-mode: difference;
-    overflow: hidden;
-    position: absolute;
-    top: 50%;
-    transition: all 200ms ease-out;
-    vertical-align: top;
-    width: 32px;
-    z-index: 4;
-  }
-
-  .sb-previewBlock {
-    background: #fff;
-    border: 1px solid rgba(0, 0, 0, 0.1);
-    border-radius: 4px;
-    box-shadow: rgba(0, 0, 0, 0.1) 0 1px 3px 0;
-    margin: 25px auto 40px;
-    max-width: 600px;
-  }
-
-  .sb-previewBlock_header {
-    align-items: center;
-    box-shadow: rgba(0, 0, 0, 0.1) 0 -1px 0 0 inset;
-    display: flex;
-    gap: 14px;
-    height: 40px;
-    padding: 0 12px;
-  }
-
-  .sb-previewBlock_icon {
-    -webkit-animation: sb-glow 1.5s ease-in-out infinite;
-    animation: sb-glow 1.5s ease-in-out infinite;
-    background: #e6e6e6;
-    height: 14px;
-    width: 14px;
-  }
-  .sb-previewBlock_icon:last-child {
-    margin-left: auto;
-  }
-
-  .sb-previewBlock_body {
-    -webkit-animation: sb-glow 1.5s ease-in-out infinite;
-    animation: sb-glow 1.5s ease-in-out infinite;
-    height: 182px;
-    position: relative;
-  }
-
-  .sb-argstableBlock {
-    border-collapse: collapse;
-    border-spacing: 0;
-    font-size: 13px;
-    line-height: 20px;
-    margin: 25px auto 40px;
-    max-width: 600px;
-    text-align: left;
-    width: 100%;
-  }
-  .sb-argstableBlock th:first-of-type,
-  .sb-argstableBlock td:first-of-type {
-    padding-left: 20px;
-  }
-  .sb-argstableBlock th:nth-of-type(2),
-  .sb-argstableBlock td:nth-of-type(2) {
-    width: 35%;
-  }
-  .sb-argstableBlock th:nth-of-type(3),
-  .sb-argstableBlock td:nth-of-type(3) {
-    width: 15%;
-  }
-  .sb-argstableBlock th:laste-of-type,
-  .sb-argstableBlock td:laste-of-type {
-    width: 25%;
-    padding-right: 20px;
-  }
-  .sb-argstableBlock th span,
-  .sb-argstableBlock td span {
-    -webkit-animation: sb-glow 1.5s ease-in-out infinite;
-    animation: sb-glow 1.5s ease-in-out infinite;
-    background-color: rgba(0, 0, 0, 0.1);
-    border-radius: 0;
-    box-shadow: none;
-    color: transparent;
-  }
-  .sb-argstableBlock th {
-    padding: 10px 15px;
-  }
-
-  .sb-argstableBlock-body {
-    border-radius: 4px;
-    box-shadow: rgba(0, 0, 0, 0.1) 0 1px 3px 1px, rgba(0, 0, 0, 0.065) 0 0 0 1px;
-  }
-  .sb-argstableBlock-body tr {
-    background: transparent;
-    overflow: hidden;
-  }
-  .sb-argstableBlock-body tr:not(:first-child) {
-    border-top: 1px solid #e6e6e6;
-  }
-  .sb-argstableBlock-body tr:first-child td:first-child {
-    border-top-left-radius: 4px;
-  }
-  .sb-argstableBlock-body tr:first-child td:last-child {
-    border-top-right-radius: 4px;
-  }
-  .sb-argstableBlock-body tr:last-child td:first-child {
-    border-bottom-left-radius: 4px;
-  }
-  .sb-argstableBlock-body tr:last-child td:last-child {
-    border-bottom-right-radius: 4px;
-  }
-  .sb-argstableBlock-body td {
-    background: #fff;
-    padding-bottom: 10px;
-    padding-top: 10px;
-    vertical-align: top;
-  }
-  .sb-argstableBlock-body td:not(:first-of-type) {
-    padding-left: 15px;
-    padding-right: 15px;
-  }
-  .sb-argstableBlock-body button {
-    -webkit-animation: sb-glow 1.5s ease-in-out infinite;
-    animation: sb-glow 1.5s ease-in-out infinite;
-    background-color: rgba(0, 0, 0, 0.1);
-    border: 0;
-    border-radius: 0;
-    box-shadow: none;
-    color: transparent;
-    display: inline;
-    font-size: 12px;
-    line-height: 1;
-    padding: 10px 16px;
-  }
-
-  .sb-argstableBlock-summary {
-    margin-top: 4px;
-  }
-
-  .sb-argstableBlock-code {
-    margin-right: 4px;
-    margin-bottom: 4px;
-    padding: 2px 5px;
-  }
-</style>
-
 <div class="sb-preparing-story sb-wrapper">
   <div class="sb-loader"></div>
 </div>
diff --git a/lib/core-common/src/templates/base-preview-head.html b/lib/core-common/src/templates/base-preview-head.html
index def373e8608d..3a7bef117384 100644
--- a/lib/core-common/src/templates/base-preview-head.html
+++ b/lib/core-common/src/templates/base-preview-head.html
@@ -1,8 +1,6 @@
 <base target="_parent" />
 
 <style>
-  :not(.sb-show-main) > #root,
-  :not(.sb-show-main) > #docs-root,
   :not(.sb-show-preparing-story) > .sb-preparing-story,
   :not(.sb-show-preparing-docs) > .sb-preparing-docs,
   :not(.sb-show-nopreview) > .sb-nopreview,
@@ -102,6 +100,203 @@
   .sb-errordisplay pre {
     white-space: pre-wrap;
   }
+
+  @-webkit-keyframes sb-rotate360 {
+    from {
+      transform: rotate(0deg);
+    }
+    to {
+      transform: rotate(360deg);
+    }
+  }
+  @keyframes sb-rotate360 {
+    from {
+      transform: rotate(0deg);
+    }
+    to {
+      transform: rotate(360deg);
+    }
+  }
+  @-webkit-keyframes sb-glow {
+    0%,
+    100% {
+      opacity: 1;
+    }
+    50% {
+      opacity: 0.4;
+    }
+  }
+  @keyframes sb-glow {
+    0%,
+    100% {
+      opacity: 1;
+    }
+    50% {
+      opacity: 0.4;
+    }
+  }
+
+  /* We display the preparing loaders *over* the rendering story */
+  .sb-preparing-story,
+  .sb-preparing-docs {
+    background-color: white;
+  }
+
+  .sb-loader {
+    -webkit-animation: sb-rotate360 0.7s linear infinite;
+    animation: sb-rotate360 0.7s linear infinite;
+    border-color: rgba(97, 97, 97, 0.29);
+    border-radius: 50%;
+    border-style: solid;
+    border-top-color: #646464;
+    border-width: 2px;
+    display: inline-block;
+    height: 32px;
+    left: 50%;
+    margin-left: -16px;
+    margin-top: -16px;
+    mix-blend-mode: difference;
+    overflow: hidden;
+    position: absolute;
+    top: 50%;
+    transition: all 200ms ease-out;
+    vertical-align: top;
+    width: 32px;
+    z-index: 4;
+  }
+
+  .sb-previewBlock {
+    background: #fff;
+    border: 1px solid rgba(0, 0, 0, 0.1);
+    border-radius: 4px;
+    box-shadow: rgba(0, 0, 0, 0.1) 0 1px 3px 0;
+    margin: 25px auto 40px;
+    max-width: 600px;
+  }
+
+  .sb-previewBlock_header {
+    align-items: center;
+    box-shadow: rgba(0, 0, 0, 0.1) 0 -1px 0 0 inset;
+    display: flex;
+    gap: 14px;
+    height: 40px;
+    padding: 0 12px;
+  }
+
+  .sb-previewBlock_icon {
+    -webkit-animation: sb-glow 1.5s ease-in-out infinite;
+    animation: sb-glow 1.5s ease-in-out infinite;
+    background: #e6e6e6;
+    height: 14px;
+    width: 14px;
+  }
+  .sb-previewBlock_icon:last-child {
+    margin-left: auto;
+  }
+
+  .sb-previewBlock_body {
+    -webkit-animation: sb-glow 1.5s ease-in-out infinite;
+    animation: sb-glow 1.5s ease-in-out infinite;
+    height: 182px;
+    position: relative;
+  }
+
+  .sb-argstableBlock {
+    border-collapse: collapse;
+    border-spacing: 0;
+    font-size: 13px;
+    line-height: 20px;
+    margin: 25px auto 40px;
+    max-width: 600px;
+    text-align: left;
+    width: 100%;
+  }
+  .sb-argstableBlock th:first-of-type,
+  .sb-argstableBlock td:first-of-type {
+    padding-left: 20px;
+  }
+  .sb-argstableBlock th:nth-of-type(2),
+  .sb-argstableBlock td:nth-of-type(2) {
+    width: 35%;
+  }
+  .sb-argstableBlock th:nth-of-type(3),
+  .sb-argstableBlock td:nth-of-type(3) {
+    width: 15%;
+  }
+  .sb-argstableBlock th:laste-of-type,
+  .sb-argstableBlock td:laste-of-type {
+    width: 25%;
+    padding-right: 20px;
+  }
+  .sb-argstableBlock th span,
+  .sb-argstableBlock td span {
+    -webkit-animation: sb-glow 1.5s ease-in-out infinite;
+    animation: sb-glow 1.5s ease-in-out infinite;
+    background-color: rgba(0, 0, 0, 0.1);
+    border-radius: 0;
+    box-shadow: none;
+    color: transparent;
+  }
+  .sb-argstableBlock th {
+    padding: 10px 15px;
+  }
+
+  .sb-argstableBlock-body {
+    border-radius: 4px;
+    box-shadow: rgba(0, 0, 0, 0.1) 0 1px 3px 1px, rgba(0, 0, 0, 0.065) 0 0 0 1px;
+  }
+  .sb-argstableBlock-body tr {
+    background: transparent;
+    overflow: hidden;
+  }
+  .sb-argstableBlock-body tr:not(:first-child) {
+    border-top: 1px solid #e6e6e6;
+  }
+  .sb-argstableBlock-body tr:first-child td:first-child {
+    border-top-left-radius: 4px;
+  }
+  .sb-argstableBlock-body tr:first-child td:last-child {
+    border-top-right-radius: 4px;
+  }
+  .sb-argstableBlock-body tr:last-child td:first-child {
+    border-bottom-left-radius: 4px;
+  }
+  .sb-argstableBlock-body tr:last-child td:last-child {
+    border-bottom-right-radius: 4px;
+  }
+  .sb-argstableBlock-body td {
+    background: #fff;
+    padding-bottom: 10px;
+    padding-top: 10px;
+    vertical-align: top;
+  }
+  .sb-argstableBlock-body td:not(:first-of-type) {
+    padding-left: 15px;
+    padding-right: 15px;
+  }
+  .sb-argstableBlock-body button {
+    -webkit-animation: sb-glow 1.5s ease-in-out infinite;
+    animation: sb-glow 1.5s ease-in-out infinite;
+    background-color: rgba(0, 0, 0, 0.1);
+    border: 0;
+    border-radius: 0;
+    box-shadow: none;
+    color: transparent;
+    display: inline;
+    font-size: 12px;
+    line-height: 1;
+    padding: 10px 16px;
+  }
+
+  .sb-argstableBlock-summary {
+    margin-top: 4px;
+  }
+
+  .sb-argstableBlock-code {
+    margin-right: 4px;
+    margin-bottom: 4px;
+    padding: 2px 5px;
+  }
 </style>
 
 <script>