1. Why assigning too many ids to html elements is not a good practice?

CSS

Background

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2
3

body {
  background: #ffffff url("img_tree.png") no-repeat right top;
}

Ref

1. Bulma
2. CSS框架Bulma

(THIS BLOG IS STILL IN PROGRESS)

Refs

1. Sass
2. Less
3. Stylus
4. PostCss
5. CSS Preprocessors: What? Why?…How?!