BI-30745 根据caniuse网站查询的兼容性，增加浏览器兼容前缀

src/less/base/pane.less

@@ -1,5 +1,4 @@
 @import "../index";
-
 .bi-pane {
     min-height: 25px;
     .background-color(@color-bi-background-normal, 0);
@@ -9,17 +8,41 @@
     &>div {
         .background-color(@background-color-highlight, 90%);
         .border-radius(2.5px);
+        -webkit-animation: loading-widget 0.8s infinite linear;
+        -moz-animation: loading-widget 0.8s infinite linear;
         animation: loading-widget 0.8s infinite linear;
     }
     & .rect2 {
+        -webkit-animation-delay: -0.2s;
+        -moz-animation-delay: -0.2s;
         animation-delay: -0.2s;
     }
     & .rect3 {
+        -webkit-animation-delay: -0.4s;
+        -moz-animation-delay: -0.4s;
         animation-delay: -0.4s;
     }
-
+    @-webkit-keyframes loading-widget {
+        0%,
+        100% {
+            -webkit-transform: scaleY(0.3);
+        }
+        50% {
+            -webkit-transform: scaleY(1);
+        }
+    }
+    @-moz-keyframes loading-widget {
+        0%,
+        100% {
+            -moz-transform: scaleY(0.3);
+        }
+        50% {
+            -moz-transform: scaleY(1);
+        }
+    }
     @keyframes loading-widget {
-      0%, 100% {
+        0%,
+        100% {
             transform: scaleY(0.3);
         }
         50% {