Based on comments on Email dated 01-Nov-2021:
- use Bootstrap 5 (SCSS) and compile it using Gulp and gulp-sass
-
- Adjust your codes to use SCSS, compile using Gulp, and
-
- Put CSS in external file
For Bootstrap compile, step as below:
- Download Boostrap 5 and use SCSS folder
- install Gulp and Gulp-sass for the project folder
- config gulpfile.js to compile Boostrap SCSS file
- run Gulp
- In HTML, add generated Boostrap css file to link ref
Besides, add a css file to store customized styles.