Put overlay animation while loading ontop table

packages/data-table-view/src/data-table-view.js

@@ -202,21 +202,32 @@ class DataTableView extends LitElement {
         return html`
             <link rel="stylesheet" href="${dt_css}">
             <style>
+                #dt-parent {
+                    display: block;
+                    width: 100%;
+                    min-height: 50px;
+                    position: relative;
+                }
                 #cover {
-                    min-width: 100px;
                     display: ${this.is_loading ? 'block' : 'none'};
-                    position: relative; height: 100%; width: 100%; top: 0; left: 0; background: #fff; z-index:9999;
+                    position: absolute;
+                    left: 0;
+                    top: 0;
+                    width: 100%;
+                    height: 100%;
+                    /* margin: 0 auto; */
+                    z-index: 999;
+                    background: white url("data:image/gif;base64,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") center center no-repeat;
+                    opacity: .9;
                 }
-                #cover img {
-                    display: block;
-                    margin 0 auto;
+                #dt {
+                    min-width: 100px;
+                    width: 100%;
                 }
             </style>
             <div id="dt-parent">
-                <div id="cover">
-                    <img src="data:image/gif;base64,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">
-                </div>
-                <table id="dt" class="display" style="width:100%"></table>
+                <table id="dt" class="display"></table>
+                <div id="cover"></div>
             </div>
         `;
     }