Calculator tip app using HTML, CSS and Vanilla JavaScript

This is the 3rd project that I made from here and my first approach to coding JavaScript from scratch.

Some headlines about my work

• Built with
• Semantic HTML5 markup
• Flexbox
• CSS Grid
• JavaScript

What I learned

• CSS Layout with flexbox and grid.
• Use of JavaScript properties in the DOM.
• I put into practice the basic principles of JavaScript, such as arithmetic and conditional operators.
• The utility of the querySelector to add interactivity to the different HTML elements.
• Practiced responsive design through media queries and approach to mobile-first design

What can be improve

• I remade the styles since the first upload of my version of the project. I made the mistake that I didn't make the styles mobile-first at first, but the website is perfectly responsive.