diff --git a/components/lib/datatable/DataTable.vue b/components/lib/datatable/DataTable.vue
index c6d000f3d06..c4abacd0408 100755
--- a/components/lib/datatable/DataTable.vue
+++ b/components/lib/datatable/DataTable.vue
@@ -1307,7 +1307,7 @@ export default {
 
             widths.forEach((width, index) => {
                 let colWidth = index === colIndex ? newColumnWidth : nextColumnWidth && index === colIndex + 1 ? nextColumnWidth : width;
-                let style = `width: ${colWidth}px; max-width: ${colWidth}px`;
+                let style = `width: ${colWidth}px !important; max-width: ${colWidth}px !important`;
 
                 innerHTML += `
                     ${selector} > thead[data-pc-section="thead"] > tr > th:nth-child(${index + 1}),
@@ -1763,7 +1763,7 @@ export default {
                     let selector = `[data-pc-name="datatable"][${this.attributeSelector}] > [data-pc-section="wrapper"] ${this.virtualScrollerDisabled ? '' : '> [data-pc-section="virtualscroller"]'} > table[data-pc-section="table"]`;
 
                     widths.forEach((width, index) => {
-                        let style = `width: ${width}px; max-width: ${width}px`;
+                        let style = `width: ${width}px !important; max-width: ${width}px !important`;
 
                         innerHTML += `
                             ${selector} > thead[data-pc-section="thead"] > tr > th:nth-child(${index + 1}),
diff --git a/components/lib/sidebar/style/SidebarStyle.js b/components/lib/sidebar/style/SidebarStyle.js
index 7a152cdf081..79a6e3d3b79 100644
--- a/components/lib/sidebar/style/SidebarStyle.js
+++ b/components/lib/sidebar/style/SidebarStyle.js
@@ -49,11 +49,11 @@ const css = `
     .p-sidebar-full .p-sidebar {
         transition: none;
         transform: none;
-        width: 100vw;
-        height: 100vh;
+        width: 100vw !important;
+        height: 100vh !important;
         max-height: 100%;
-        top: 0px;
-        left: 0px;
+        top: 0px !important;
+        left: 0px !important;
     }
 
     /* Animation */