Add some CSS

src/components/Main.vue

@@ -35,6 +35,7 @@
         flex-direction: row;
         
         width: 100%;
+        height:36px;
         
         border:1px solid black;
     }
@@ -43,6 +44,7 @@
         display: flex;
 
         padding:1px;
+        box-sizing: border-box;
         border: 1px rgb(221, 221, 221) solid;
     }
     textarea{

src/components/Setting.vue

@@ -82,6 +82,7 @@
 #setting-panel>div>input,select{
     width: 300px;
     height: 30px;
+    box-sizing: border-box;
 }
 </style>