feat:copy and paste highlight element

src/editor/utils/clipboard.ts

@@ -118,6 +118,9 @@ export function writeElementList(elementList: IElement[], options: DeepRequired<
         if (element.size) {
           dom.style.fontSize = `${element.size}px`
         }
+        if (element.highlight) {
+          dom.style.backgroundColor = element.highlight
+        }
         clipboardDom.append(dom)
       }
     }
@@ -156,6 +159,9 @@ export function getElementListByHTML(htmlText: string, options: IGetElementListB
         if (rowFlex !== RowFlex.LEFT) {
           element.rowFlex = rowFlex
         }
+        if (style.backgroundColor !== 'rgba(0, 0, 0, 0)') {
+          element.highlight = style.backgroundColor
+        }
         elementList.push(element)
       }
     } else if (dom.nodeType === 1) {