1) Adding Box Shadows to WordPress Blocks and Elements

It is possible to add a box-shadow for the button on hover state in theme.json
For example, if you’re hoping to style something with like perspective-origin in theme.json, it just won’t happen — at least as I’m writing this today.
2) Use Kintone to Spend Less Time on the Back-end

Kintone is a powerful web database, providing developers with a convenient environment to test out front-end coding ideas, without having to run a back-end.
3) A Practical Guide to CSS Media Queries

Take a closer look at what media queries are, how they work, and how to use them correctly, including for creating responsive designs. By Alex Ivanovs.
4) A Complete Guide to Flexbox

Our comprehensive guide to CSS flexbox layout. This complete guide explains everything about flexbox, focusing on all the different possible properties for the parent element (the flex container) and the child elements (the flex items). It also includes history, demos, patterns, and a browser support chart.
5) A Complete Guide to Data Attributes

Good news though: you can make up your own attributes. You just need to prefix them with data-* and then you’re free to do what you please!
It can be awfully handy to be able to make up your own HTML attributes and put your own information inside them. Fortunately, you can! That’s exactly what data attributes are.
6) How To Secure React Applications Against XSS Attacks with HTTP-Only Cookies

Token-based authentication can secure web applications that have a mix of public and private assets
You’ll understand the security considerations needed to implement a functioning token-based authentication system alongside a React and Node web application. The code for this tutorial is available in the DigitalOcean Community GitHub.
7) How To Add Login Authentication to React Applications

Many web applications are a mix of public and private pages. Public pages are available to anyone, while a private page requires a user login. You can use authentication to manage which users have access to which pages.
You’ll be able to add authentication to a React application and integrate the login and token storage strategies into a complete user workflow.
8)How To Import and Export Databases in MySQL or MariaDB

Importing and exporting databases is a common task in software development. You can use data dumps to back up and restore your information. You can also use them to migrate data to a new server or development environment.
In this tutorial, you will work with database dumps in MySQL or MariaDB (the commands are interchangeable). Specifically, you will export a database and then import that database from the dump file.
9)How To Crawl A Web Page with Scrapy and Python 3

Web scraping, often called web crawling or web spidering, is the act of programmatically going over a collection of web pages and extracting data, and is a powerful tool for working with data on the web.
With a web scraper, you can mine data about a set of products, get a large corpus of text or quantitative data to play around with, retrieve data from a site without an official API, or just satisfy your own personal curiosity.