What is the reason why the `/*rtl:ignore*/` comment fails when the PostCSS RTL plugin handles SCSS nested selectors?

PostCSS RTL plug-in and SCSS nested selector conflict and solution

When using the PostCSS RTL plugin to process SCSS styles, /*rtl:ignore*/ comments fail in the nested selector. This article analyzes this problem and provides solutions.

Problem: The developer uses nested selectors in the SCSS file and adds /*rtl:ignore*/ comment to prevent RTL conversion, but the comment is invalid. For example:

/* rtl:ignore */
.header_btn {
  .action-account {
    background: url(../img/iconsX.png) no-repeat -691px -291px;
  }
}

In the RTL environment, the background image position of .action-account selector is still converted. However, the same code works fine in a pure CSS file /*rtl:ignore*/

Cause: When the PostCSS RTL plug-in processes SCSS files, there are limitations in /*rtl:ignore*/ annotation identification in the nested selector. This means that in the SCSS nested structure, the validity of this annotation is affected.

Solution: Convert nested SCSS code into non-nested CSS code. By expanding the nested structure, the /*rtl:ignore*/ annotation acts directly on the target selector, ensuring that the PostCSS RTL plug-in correctly recognizes and ignores the transformation. For example, convert the above SCSS code to:

/* rtl:ignore */
.header_btn .action-account {
  background: url(../img/iconsX.png) no-repeat -691px -291px;
}

Through this method, the PostCSS RTL plug-in can effectively solve the problem of /*rtl:ignore*/ annotation invalid when dealing with SCSS nested selectors, ensuring the correct handling of styles.

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