* fix close icon not show in windows in kindeditor holder example.

docs/examples/kindeditor-holder.html

@@ -96,7 +96,7 @@
                     '.holder-element:before {content: attr(data-holder)}',
                     '.holder-block {display: block; text-align: center}',
                     '.holder-span {display: inline-block; line-height: 1}',
-                    '.holder-value:after {content: "𐄂"; display: block; position: absolute; right: 0; top: 0; bottom: 0; border-radius: 0 3px 3px 0; background: #ffe5e0; text-align: center; font-size: 14px; display: flex; justify-content: center; align-items: center; width: 20px; border-left: 1px solid #ea644a; opacity: 0}',
+                    '.holder-value:after {content: "X"; display: block; position: absolute; right: 0; top: 0; bottom: 0; border-radius: 0 3px 3px 0; background: #ffe5e0; text-align: center; font-size: 14px; display: flex; justify-content: center; align-items: center; width: 20px; border-left: 1px solid #ea644a; opacity: 0}',
                     '.holder-element:hover .holder-value:after {opacity: 1}',
                     '.holder-value:hover:after {background: #ea644a; color: #fff}',
                     '</style>'