diff --git a/src/components/ContentWrap.jsx b/src/components/ContentWrap.jsx
index fe36a5be..246140b2 100644
--- a/src/components/ContentWrap.jsx
+++ b/src/components/ContentWrap.jsx
@@ -469,38 +469,6 @@ export default class ContentWrap extends Component {
 		trackEvent('ui', 'copyPng');
 	}
 
-	async copyPngClickHandlerBySafari1(e) {
-		console.log(e);
-		navigator.clipboard.write([
-			new ClipboardItem({
-				"image/png": new Promise(async resolve => {
-					const response = await fetch("https://upload.wikimedia.org/wikipedia/commons/4/47/PNG_transparency_demonstration_1.png");
-					resolve(await response.blob());
-				})
-			})
-		]).then(
-			r => console.log("success", r),
-			reason => console.log("failed", reason)
-		);
-	}
-
-	async copyPngClickHandlerBySafari2(e) {
-		console.log(e);
-		const mountingPoint = this.frame.contentWindow.document.getElementById('diagram');
-		// eslint-disable-next-line
-		const png = await mountingPoint.getElementsByClassName('frame')[0].parentElement.__vue__.toBlob();
-		navigator.clipboard.write([
-			new ClipboardItem({
-				"image/png": new Promise(async resolve => {
-					resolve(png);
-				})
-			})
-		]).then(
-			r => console.log("success", r),
-			reason => console.log("failed", reason)
-		);
-	}
-
 	async copyPngClickHandlerBySafari3(e) {
 		console.log(e);
 		const mountingPoint = this.frame.contentWindow.document.getElementById('diagram');
@@ -516,23 +484,7 @@ export default class ContentWrap extends Component {
 			r => console.log("success", r),
 			reason => console.log("failed", reason)
 		);
-	}
-
-	async copyPngClickHandlerBySafari4(e) {
-		console.log(e);
-		const mountingPoint = this.frame.contentWindow.document.getElementById('diagram');
-		// eslint-disable-next-line
-		navigator.clipboard.write([
-			new ClipboardItem({
-				"image/png": new Promise(async resolve => {
-					const png = await mountingPoint.getElementsByClassName('frame')[0].parentElement.__vue__.toBlob();
-					resolve(await png);
-				})
-			})
-		]).then(
-			r => console.log("success", r),
-			reason => console.log("failed", reason)
-		);
+		trackEvent('ui', 'copyPng');
 	}
 
 	copyPngToClipboard(imageData) {
@@ -1142,16 +1094,18 @@ export default class ContentWrap extends Component {
 								</Button>
 								<Button
 									className="btn--dark button icon-button hint--rounded hint--bottom-left"
-									aria-label="Copy PNG on Clipboard"
+									aria-label="Copy PNG to Clipboard"
 									onClick={this.copyPngClickHandler.bind(this)}>
 									<span class="material-symbols-outlined">file_copy</span>
+									<span>Copy PNG File By Chrome</span>
+								</Button>
+								<Button
+									className="btn--dark button icon-button hint--rounded hint--bottom-left"
+									aria-label="Copy PNG to Clipboard"
+									onClick={this.copyPngClickHandlerBySafari3.bind(this)}>
+									<span class="material-symbols-outlined">file_copy</span>
 									<span>Copy PNG File</span>
 								</Button>
-								<a onClick={this.copyPngClickHandlerBySafari1.bind(this)}>test1</a>
-								<a onClick={this.copyPngClickHandlerBySafari2.bind(this)}>test2</a>
-								<a onClick={this.copyPngClickHandlerBySafari3.bind(this)}>test3</a>
-								<a onClick={this.copyPngClickHandlerBySafari4.bind(this)}>test4</a>
-								<a id="a-test">just-a</a>
 							</div>
 						</div>
 					)}