diff --git a/library-css/modal.scss b/library-css/modal.scss
index 5a3c6a2..76ab148 100644
--- a/library-css/modal.scss
+++ b/library-css/modal.scss
@@ -32,13 +32,13 @@
 }
 
 .fs-modal .fs-modal-dialog > .content {
-  max-height: calc(100% - 80px);
+  max-height: calc(100vh - 180px);
   padding: 15px;
   overflow: auto;
 }
 
 .fs-modal .fs-modal-dialog > .content.hasFooter {
-  max-height: calc(100% - 140px);
+  max-height: calc(100vh - 240px);
 }
 
 .fs-modal .fs-modal-dialog > .footer {