diff --git a/.stylelintrc.json b/.stylelintrc.json
index 930c6dd3e..c39582456 100644
--- a/.stylelintrc.json
+++ b/.stylelintrc.json
@@ -37,6 +37,7 @@
     "comment-word-disallowed-list": null,
     "custom-property-pattern": null,
     "no-descending-specificity": null,
+    "keyframes-name-pattern": null,
     "@stylistic/declaration-block-trailing-semicolon": "always"
   }
 }
diff --git a/stirling-pdf/src/main/resources/static/css/rainbow-mode.css b/stirling-pdf/src/main/resources/static/css/rainbow-mode.css
index 1b0049007..b73f42fea 100644
--- a/stirling-pdf/src/main/resources/static/css/rainbow-mode.css
+++ b/stirling-pdf/src/main/resources/static/css/rainbow-mode.css
@@ -71,7 +71,7 @@ body {
     rgba(251, 7, 217, 1) 90%,
     rgba(255, 0, 0, 1) 100%
   ) !important;
-  color: fff !important;
+  color: #fff !important;
 }
 
 .list-group-item {
@@ -89,7 +89,7 @@ body {
     rgba(251, 7, 217, 1) 90%,
     rgba(255, 0, 0, 1) 100%
   ) !important;
-  color: fff !important;
+  color: #fff !important;
 }
 
 #support-section {
diff --git a/stirling-pdf/src/main/resources/static/css/theme/componentes.css b/stirling-pdf/src/main/resources/static/css/theme/componentes.css
index 0f1bfbd34..6d3e8ff53 100644
--- a/stirling-pdf/src/main/resources/static/css/theme/componentes.css
+++ b/stirling-pdf/src/main/resources/static/css/theme/componentes.css
@@ -40,7 +40,7 @@ textarea {
 }
 
 *::-webkit-scrollbar-corner {
-  background-color: var(--md-sys-color-surface); 
+  background-color: var(--md-sys-color-surface);
 }
 
 /* Alerts */
@@ -692,6 +692,7 @@ fieldset:disabled .btn {
 .form-check > input:first-child:disabled + input[type="hidden"] + label::before {
   pointer-events: none;
   cursor: default;
+  /* stylelint-disable-next-line declaration-property-value-no-unknown */
   filter: alpha(opacity=65);
   -webkit-box-shadow: none;
   box-shadow: none;
diff --git a/stirling-pdf/src/main/resources/static/css/theme/font.css b/stirling-pdf/src/main/resources/static/css/theme/font.css
index 5968676f2..a11d1a2d5 100644
--- a/stirling-pdf/src/main/resources/static/css/theme/font.css
+++ b/stirling-pdf/src/main/resources/static/css/theme/font.css
@@ -8,6 +8,7 @@
 
 
 .material-symbols-rounded {
+    /* stylelint-disable-next-line font-family-no-missing-generic-family-keyword */
     font-family: 'Material Symbols Rounded';
     font-weight: 300;
     font-style: normal;
@@ -20,5 +21,6 @@
     word-wrap: normal;
     direction: ltr;
     -webkit-font-feature-settings: 'liga';
+    font-feature-settings: 'liga';
     -webkit-font-smoothing: antialiased;
 }
diff --git a/stirling-pdf/src/main/resources/static/pdfjs-legacy/css/debugger.css b/stirling-pdf/src/main/resources/static/pdfjs-legacy/css/debugger.css
index 3b85344f7..8380bf5de 100644
--- a/stirling-pdf/src/main/resources/static/pdfjs-legacy/css/debugger.css
+++ b/stirling-pdf/src/main/resources/static/pdfjs-legacy/css/debugger.css
@@ -60,7 +60,7 @@
 }
 
 #PDFBug .stats {
-  font-family: courier;
+  font-family: courier, monospace;
   font-size: 10px;
   white-space: pre;
 }