diff --git a/packages/docusaurus-theme-openapi-docs/src/theme/DiscriminatorTabs/_DiscriminatorTabs.scss b/packages/docusaurus-theme-openapi-docs/src/theme/DiscriminatorTabs/_DiscriminatorTabs.scss
index a5a583b0f..a85375f88 100644
--- a/packages/docusaurus-theme-openapi-docs/src/theme/DiscriminatorTabs/_DiscriminatorTabs.scss
+++ b/packages/docusaurus-theme-openapi-docs/src/theme/DiscriminatorTabs/_DiscriminatorTabs.scss
@@ -75,7 +75,7 @@
   position: relative;
   margin: 0 !important;
   padding: 5px 0 5px 0 !important;
-  border-left: thin solid var(--ifm-color-gray-500) !important;
+  border-left: thin solid var(--openapi-tree-line-color) !important;
 }
 
 @media screen and (max-width: 500px) {
diff --git a/packages/docusaurus-theme-openapi-docs/src/theme/Markdown/Details/_Details.scss b/packages/docusaurus-theme-openapi-docs/src/theme/Markdown/Details/_Details.scss
index 335a76b59..ec652ce23 100644
--- a/packages/docusaurus-theme-openapi-docs/src/theme/Markdown/Details/_Details.scss
+++ b/packages/docusaurus-theme-openapi-docs/src/theme/Markdown/Details/_Details.scss
@@ -2,7 +2,6 @@
 
 .openapi-markdown__details {
   margin: unset !important;
-  max-width: 600px;
   background-color: transparent;
   color: var(--ifm-font-color-base);
   padding: unset;
diff --git a/packages/docusaurus-theme-openapi-docs/src/theme/ParamsItem/_ParamsItem.scss b/packages/docusaurus-theme-openapi-docs/src/theme/ParamsItem/_ParamsItem.scss
index 1fa75b564..cf1752856 100644
--- a/packages/docusaurus-theme-openapi-docs/src/theme/ParamsItem/_ParamsItem.scss
+++ b/packages/docusaurus-theme-openapi-docs/src/theme/ParamsItem/_ParamsItem.scss
@@ -2,7 +2,7 @@
   margin: 0 0 0 1rem !important;
   position: relative;
   padding-left: 1rem;
-  border-left: thin solid var(--ifm-color-gray-500) !important;
+  border-left: thin solid var(--openapi-tree-line-color) !important;
   margin-top: unset !important;
 
   // Horizonal line styling for param attributes
@@ -15,7 +15,7 @@
     height: 0.5rem;
     /* vertical position of line */
     vertical-align: top;
-    border-bottom: thin solid var(--ifm-color-gray-500);
+    border-bottom: thin solid var(--openapi-tree-line-color);
     content: "";
     display: inline-block;
   }
diff --git a/packages/docusaurus-theme-openapi-docs/src/theme/SchemaItem/_SchemaItem.scss b/packages/docusaurus-theme-openapi-docs/src/theme/SchemaItem/_SchemaItem.scss
index bfff72c45..dc626dd57 100644
--- a/packages/docusaurus-theme-openapi-docs/src/theme/SchemaItem/_SchemaItem.scss
+++ b/packages/docusaurus-theme-openapi-docs/src/theme/SchemaItem/_SchemaItem.scss
@@ -3,7 +3,7 @@
   position: relative;
   margin: 0 !important;
   padding: 5px 0 5px 1rem;
-  border-left: thin solid var(--ifm-color-gray-500) !important;
+  border-left: thin solid var(--openapi-tree-line-color) !important;
 
   // Horizontal line styling for schema properties
   &::before {
@@ -15,7 +15,7 @@
     height: 0.5rem;
     /* vertical position of line */
     vertical-align: top;
-    border-bottom: thin solid var(--ifm-color-gray-500);
+    border-bottom: thin solid var(--openapi-tree-line-color);
     content: "";
     display: inline-block;
   }
diff --git a/packages/docusaurus-theme-openapi-docs/src/theme/styles.scss b/packages/docusaurus-theme-openapi-docs/src/theme/styles.scss
index 72b85c8e9..f1f6a9445 100644
--- a/packages/docusaurus-theme-openapi-docs/src/theme/styles.scss
+++ b/packages/docusaurus-theme-openapi-docs/src/theme/styles.scss
@@ -43,6 +43,7 @@
   --openapi-card-border-radius: var(--ifm-pre-border-radius);
   --openapi-input-border: var(--ifm-color-primary);
   --openapi-input-background: var(--openapi-card-background-color);
+  --openapi-tree-line-color: var(--ifm-toc-border-color);
 }
 
 [data-theme="dark"] {