update code for maintain backward compatible

mrtuvn · web-flow · commit b8e26ce83d73 · 2020-05-04T14:38:02.000+07:00
diff --git a/app/design/frontend/Magento/luma/web/css/source/_buttons.less b/app/design/frontend/Magento/luma/web/css/source/_buttons.less
@@ -17,6 +17,8 @@
 
     button {
         &:not(.primary) {
+            .lib-css(box-shadow, none);
+            
             &:active {
                 .lib-css(box-shadow, @button__shadow-active);
             }

Original file line number	Diff line number	Diff line change
`@@ -17,6 +17,8 @@`
`17`	`17`
`18`	`18`	`button {`
`19`	`19`	`&:not(.primary) {`
	`20`	`+ .lib-css(box-shadow, none);`
	`21`	`+`
`20`	`22`	`&:active {`
`21`	`23`	`.lib-css(box-shadow, @button__shadow-active);`
`22`	`24`	`}`