三角形样式修正

@@ -62,8 +62,8 @@ $pxConvertRem : 40;
                 .arrow {
                     display: block;
                     position: absolute;
-                    width: 32rem / $pxConvertRem;
-                    height: 19rem / $pxConvertRem;
+                    width: 25rem / $pxConvertRem;
+                    height: 14rem / $pxConvertRem;
                     bottom: -1px;
                     left: 50%;
                     margin: 0 0 0 -16rem / $pxConvertRem;