added error page bg

src/assets/css/main.css

@@ -5903,6 +5903,22 @@ blockquote cite {
 
 .appie-error-area {
   padding-top: 250px;
+  width: 100%;
+  min-height: 100vh;
+  background: url("../images/wrenchng-page-notfound.jpg") center/cover;
+  position: relative;
+  /* z-index: 1; */
+}
+
+.appie-error-area::before{
+  content: "";
+  position: absolute;
+  top: 0;
+  left: 0;
+  width: 100%;
+  height: 100%;
+  background: #cdcdcd;
+  opacity: 0.8;
 }
 
 .appie-error-content span {