diff --git a/README.md b/README.md
index 41aac40..5bbb8b7 100644
--- a/README.md
+++ b/README.md
@@ -23,12 +23,16 @@ Install dependencies
 ```cmd
 pnpm install
 ```
-
 and run the project
-
 ```cmd
 pnpm run dev
 ```
+or 
+```cmd
+pnpm run dev:testnet
+
+```
+for testnet
 
 ## Project Walkthrough
 
diff --git a/data.json b/data.json
index 90d6812..b5eca61 100644
--- a/data.json
+++ b/data.json
@@ -1,5 +1,5 @@
 {
-  "example.near": {
+  "mintbos.testnet": {
     "widget": {
       "Index": {
         "metadata": {
diff --git a/widget/components/NFT/Card.jsx b/widget/components/NFT/Card.jsx
index 0dfedc7..64bf586 100644
--- a/widget/components/NFT/Card.jsx
+++ b/widget/components/NFT/Card.jsx
@@ -101,7 +101,8 @@ const Card = ({ data }) => {
     box-shadow: rgba(0, 0, 0, 0.08) 0px 4px 16px;
     transition: background-color 0.25s ease-in-out;
     border: 4px solid #ed8a71;
-    max-width: 300px;
+    min-width: 300px;
+    max-width: 350px;
     margin: 0 auto;
     .title,
     .price {