fix

assets/popover/popover.css

@@ -0,0 +1,71 @@
+:root {
+
+}
+.popover {
+    --gap: 10px;
+    --popper-border-width: 1px;
+    --popper-border-color: #ccc;
+    position: absolute;
+    top: 0;
+    left: 0 /* rtl:ignore */;
+    z-index: 1070;
+    display: block;
+    font-family: inherit;
+    font-style: normal;
+    font-weight: 400;
+    line-height: 1.5;
+    text-align: left;
+    text-align: start;
+    text-decoration: none;
+    text-shadow: none;
+    text-transform: none;
+    letter-spacing: normal;
+    word-break: normal;
+    word-spacing: normal;
+    white-space: normal;
+    line-break: auto;
+    font-size: var(--popper-font-size);
+    word-wrap: break-word;
+    background-color: transparent;
+    background-clip: padding-box;
+    border: 0;
+    border-radius: 0;
+}
+.popover .popover-arrow {
+
+}
+
+.popover-header:empty {
+    display: none;
+}
+
+.popover-content {
+    border-radius: 3px;
+    overflow: hidden;
+    max-width: 200px;
+    padding: 0;
+    color: var(--popper-color);
+    text-align: center;
+    background-color: var(--popper-content-color);
+    border: var(--popper-border-width) solid var(--popper-border-color);
+    box-shadow: 0px 0px 5px -1px var(--popper-border-color);
+}
+.popover-header {
+    padding: calc(var(--gap) / 2) calc(var(--gap));
+    margin-bottom: 0;
+    font-size: 1em;
+    background-color: #f0f0f0;
+    border-bottom: var(--popper-border-width) solid var(--popper-border-color);
+    border-radius: 0;
+}
+.popover-body {
+    padding: calc(var(--gap) / 2) calc(var(--gap));
+    background-color: var(--popper-body-content-color);
+}
+.popover-footer:empty {
+    display: none;
+}
+.popover-footer {
+    padding: calc(var(--gap) / 2) calc(var(--gap));
+    background-color: var(--popper-footer-content-color);
+}