Sublime Text 3中CSS类ID语法着色异常及选择器颜色差异咨询

Hey there! Let’s break down why your #about selector isn’t showing up in purple like #logo_text_box_line, and fix that general ID/class coloring problem you’re seeing.

Common Causes & Solutions #

1. Double-Check the File’s Syntax Mode #

Sublime Text might have misidentified your file as something other than CSS, which kills proper syntax highlighting. Here’s how to fix it:

• Look at the bottom-right corner of your Sublime window—you should see "CSS" listed there. If not, click that text and select "CSS" from the dropdown menu.
• Alternatively, use the command palette: Press Ctrl+Shift+P (Windows/Linux) or Cmd+Shift+P (Mac), type Set Syntax: CSS, and hit Enter.

2. Disable Conflicting Third-Party Plugins #

If you’ve installed CSS-focused plugins like CSS3 or Better CSS, they might override Sublime’s default syntax rules and cause inconsistencies. Try this:

• Go to Preferences > Package Control > Disable Package, then pick any CSS-related plugins you have installed.
• Restart Sublime Text and check if #about now highlights correctly. If it does, either adjust the plugin’s settings or switch to a more compatible option.

3. Reset or Check Your Color Scheme #

Custom color schemes can sometimes mess up selector coloring. Let’s verify:

• Head to Preferences > Color Scheme and select a default option like Monokai or Solarized Light.
• If #about turns purple now, your custom color scheme has an issue. Open the scheme file (via Preferences > Color Scheme > Open Current Color Scheme) and look for rules targeting meta.selector.id.css or entity.name.tag.css—make sure the color value matches what’s used for #logo_text_box_line.

4. Fix Hidden Syntax Errors in Your CSS #

A tiny syntax mistake before line 76 can throw off the entire parser. Check the code between line 64 and 76 for:

• Missing semicolons at the end of property values
• Unclosed curly braces {}
• Unclosed quotes around strings (like in background-image: url('image.jpg)`)

For example, a mistake like this would break highlighting for everything after it:

#logo_text_box_line {
  color: #fff;
  background-color: #333
  /* Oops, missing semicolon here! */
}

#about {
  /* This selector won't highlight correctly */
}

Wrap-Up #

Start with the simplest fixes (syntax mode, syntax errors) first—those are the most common culprits. If those don’t work, move on to checking plugins and color schemes.

内容的提问来源于stack exchange，提问作者Josri