v1.0.16细节调整：令TXT预览提示文字居中

webContext/pdfview/web/viewer.html

@@ -52,8 +52,7 @@ See https://github.com/adobe-type-tools/cmap-resources
 	justify-content: space-between;
 	width: 25%;
 	min-width: 350px;
-	height: 10%;
-	max-height: 100px;
+	height: 67px;
 	margin: 100px auto;
 	border-radius: 10px;
 	-webkit-animation: zoom 0.1s;
@@ -90,7 +89,8 @@ See https://github.com/adobe-type-tools/cmap-resources
 	font-size: 18px;
 	box-sizing: border-box;
 	text-align: center;
-	padding: 23px;
+	height: 67px;
+	line-height: 67px;
 }
 
 @media only screen and (max-width: 800px) {