OWASP

**PLEASE READ THE FOLLOWING IMPORTANT NOTES:** 1. The dates listed for this series are about 95% reliable. We are completing our 2026 schedule as we speak, so minor adjustments are still occurring. 2. Each class in this series has an attendance fee, though this first offering is free on a first-come, first-served basis. 3. Each class, from BOTH a sign-up and fee perspective, is a separate entity. **Introduction:** HTML5 is the foundational technology for modern web development, serving as the standard markup language for structuring and presenting content on the World Wide Web. Developed through a collaboration between the World Wide Web Consortium (W3C) and the Web Hypertext Application Technology Working Group (WHATWG), HTML5 provides a robust system of elements (tags) that tell a browser how to display text, images, and multimedia in a clear and meaningful way. It works in concert with Cascading Style Sheets (CSS) for presentation and JavaScript for interactivity, forming the core technology stack for virtually all websites and many web applications today. One of the significant advancements of HTML5 is the introduction of powerful new features and elements designed to improve functionality and simplify development. Key additions include native multimedia support via the \ and \ tags, allowing developers to embed media without third-party plugins. It also offers new form controls for better user input, such as date and email types, and introduces web storage capabilities to store data offline for enhanced performance. These features streamline the process of building rich, interactive web experiences. A significant focus of HTML5 is enhanced semantics and better structural organization of content. New semantic elements like , , , , and \ provide meaningful structure to documents, which aids in search engine optimization (SEO) and improves accessibility for assistive technologies. These elements define different parts of a webpage (e.g., a header for the top, a nav for navigation links, a footer for the bottom), making the code more readable and understandable for both developers and machines. This emphasis on clear structure helps in creating more logical and maintainable websites. Developing websites in today's competitive environment requires taking advantage of every technique you can to get the maximum exposure possible. Our HTML5 class will not only show you what's new in the HTML specification, but also the best way to develop optimized web pages that get the attention your client and/or company requires. **The breakdown of the four-class series is as follows:** **Class 1: Introduction to Web Structure and Basic HTML5** This class introduces the core concepts of web development, the history of HTML, and the fundamental structure of an HTML5 document. * **Topics**: * **Web Architecture Overview**: How browsers, servers, and web pages interact. * **HTML Fundamentals**: Understanding elements, tags, and attributes. * **Basic Document Structure**: Using !DOCTYPE html, html, head, and body. * **Text Formatting**: Headings (h1 to h6), paragraphs (p), and text-level semantics (e.g., strong, em, br). * **Lists and Links**: Creating ordered (ol) and unordered (ul) lists, and linking between pages using anchor tags (a). * **Activity**: Students create a basic personal webpage containing text, a list of hobbies, and a link to an external website. **Class 2: Semantic HTML5 and Multimedia Integration** Class 2 focuses on modern HTML5 elements that provide meaning (semantics) to content, improving accessibility and search engine optimization. It also covers adding images and multimedia. * **Topics**: * **Semantic Elements**: Understanding and implementing elements like header, footer, nav, section, and article. * **Images**: Adding images using the img tag and attributes like src, alt, width, and height. * **Multimedia**: Embedding audio and video content using the audio and video tags. * **File and Folder Structure**: Best practices for organizing project files and managing file paths. * **Activity**: Students refactor their Class 1 project to use a proper semantic layout and add an image and a link to a video file. **Class 3: Forms and User Input** This session is dedicated to building interactive HTML5 forms, which are essential for capturing user data and input. * **Topics**: * **Form Basics**: Using the form element, action and method attributes. * **Input Types**: Exploring various input types (e.g., text, password, checkbox, radio, date, submit). * **Form Elements**: Utilizing label, textarea, select, option, and button. * **Client-side Validation**: Implementing HTML5 validation attributes like required, minlength, and pattern. * **Activity**: Students build a complete contact form with different input fields, radio buttons, and basic HTML5 validation. **Class 4: Introduction to CSS3 and Basic Styling** The final class introduces Cascading Style Sheets (CSS) to style the HTML content and make the web pages visually appealing and accessible. * **Topics**: * **CSS Fundamentals**: The role of CSS, selectors, properties, and values. * **Integrating CSS**: Using inline, internal, and external style sheets. * **The Box Model**: Understanding margin, padding, border, and content for basic layout. * **Basic Styling**: Changing colors, fonts, and text alignment. * **Accessibility Basics**: Identifying principles of web design usability and accessibility, including ARIA labels. * **Activity**: Students apply an external CSS file to their Class 3 form project to style the layout, colors, and fonts, culminating in a well-structured and styled webpage.

**PLEASE READ THE FOLLOWING IMPORTANT NOTES:** 1. The dates listed for this series are about 95% reliable. We are completing our 2026 schedule as we speak, so minor adjustments are still occurring. 2. Each class in this series has an attendance fee, on a first-come, first-served basis. 3. Each class, from BOTH a sign-up and fee perspective, is a separate entity. **Introduction:** **The breakdown of the four-class series is as follows:** **Class 1: Introduction to Web Styling and Basic CSS3** **Class 2:** **Class 3:** **Class 4:** **Class 5:** **Class 6:**

Main Library, Meeting Room 3B Join us for a welcoming evening of reflection, gentle music, and meaningful conversation. We’ll begin with a short grounding moment, followed by a brief reading from spiritual or philosophical traditions, and an open reflection circle where participants can share (or simply listen). Libera Animae is an interfaith community focused on inner growth, creativity, and authentic connection. All backgrounds are welcome.

## Pickleball League \| Singles \| 20s\, 30s\, 40s \| Columbus\, OH Ditch the dating apps and meet singles in real life — on the courts for 8 weeks. This event is ALL done through Eventbrite, we must register in advance. [The link is here! ](https://www.eventbrite.com/e/pickleball-but-everyones-single-datecolumbus-tickets-1984560246119?utm-campaign=social&utm-content=attendeeshare&utm-medium=discovery&utm-term=listing&utm-source=cp&aff=ebdsshcopyurl) April 13th - June 1st. 6:00PM - 8:00PM. Monday Nights. Whether you’re a seasoned player or brand new, this league is all about connection. 👉 **Never played before?** No problem! For the first **three weeks**, instructors will be on-site for the first 30 minutes to teach you the basics and get you comfortable jumping in. We’ll run this as **open play** — you’ll rotate courts and partners for casual games and maximum mingling. Winners stay for one round before rotating, giving you plenty of chances to meet someone new. 📅 **Mondays\, April 13th \- June 1st \| 6:00–8:00 PM** 📍 **Paddle Taps** \| 535 Lakeview Plaza Blvd\, Worthington\, OH 43085 **⭐ May 4th — Best Dressed Night: Star Wars Edition** *May the Fourth Be With You!* Dust off your Jedi robes, break out the lightsaber, or go full Chewbacca. Come dressed up, bring your A-game, and may the force (and your dinks) be with you. Best dressed winner picked by the volunteer sqaud, Winner will receive a prize! **🍽️ May 25th — Memorial Day BBQ POST PLAY** End your Memorial Day weekend with pickleball and pickleball BBQ! Paddletaps will provide the burgers & hot dogs, you're welcome to bring your fav app or dessert to share with the crew! **What to Know** * Paddles available each week — or bring your own * Locker room on-site * Full restaurant + bar available * Play runs every Monday from 6:00–8:00 PM for 8 weeks * Eat, drink, and mingle during and after play * Tickets are **non-refundable** Ready to meet your pickleball partner (and maybe more)? 🎟[ ](https://www.eventbrite.com/e/pickleball-but-everyones-single-datecolumbus-tickets-1984560246119?utm-campaign=social&utm-content=attendeeshare&utm-medium=discovery&utm-term=listing&utm-source=cp&aff=ebdsshcopyurl)**[Sign up now — spots will go fast!](https://www.eventbrite.com/e/pickleball-but-everyones-single-datecolumbus-tickets-1984560246119?utm-campaign=social&utm-content=attendeeshare&utm-medium=discovery&utm-term=listing&utm-source=cp&aff=ebdsshcopyurl)** ### Event Guidelines 🚫 No rude or inappropriate behavior 📸 Photos may be taken for promotional use 📵 Be present — phones away, eyes up ✨ Be open, have fun, and enjoy the experience

Ciao a tutt\*! Let's meet Monday at 6.30pm at the Upper Arlington Library (**Lane Road** Branch) in **Hickory Room** to speak in Italian for 1 hour. \*please note the location change -- **Lane road branch**!\*

This is a free in-person meeting. Let's talk about relationships in such a way that you can really benefit from the knowledge. We can talk about * Soulmates * How to start a relationship * How to maintain a relationship * How to pick the right partner * How to recognize the red flags * How to improve communication * How to avoid argument and fights * How to increase trust You ask the questions, we'll talk about them. Be sure to click on the red "Attend" button below to come to this local event. We look forward to seeing you there. This group is sponsored the Dianetics & Scientology Self-Improvement Center.

Columbus Code & Coffee is an inclusive, informal co-working session. People of all skill levels attend, and we love it that way. Many people (optionally) bring projects to work on, and many other people (optionally) socialize the entire time. It's entirely up to you! **What to Expect at the Intro Circle** \~\~\~\~\~\~\~\~\~\~\~\~\~ Near the beginning of the event (1:30 pm), we do a standup: * Organizer announcements, updates, and logistics Round 1 - (7 secs max): * Your name * What you're working on * What you can help others with Round 2: * Community events you wanna plug. If none, that's cool too. Round 3: * Job opportunities you're hiring for OR announce that you are looking for one. If none, that's cool. After the introduction circle, everything is self-organized! Feel free to work alone, pair up, attend one of our workshops/presentations, or mingle!

Bring your Raspberry Pi, Arduino, microcontroller, or any other electronic project and join fellow electronics makers for a night of creativity and collaboration! This session is open forum to share your current projects—whether complete or in progress, it’s all interesting! Whether you’re deep into embedded systems, exploring new ideas, or just getting started, you’ll find a welcoming space to collaborate, share, and get inspired. **New to electronics or curious about tinkering?** You’re absolutely welcome. If you’re a beginner and want to experiment, I’ll have a couple of starter kits available so you can try things out—whether that’s blinking your first LED, putting something on a display, or experimenting with simple sensors. No pressure and no experience required—just an interest in learning and building. While we continue to pursue a more permanent venue for this Meetup, we’ll be using public library facilities based on availability. This session will be at the Worthington Park Library in the Olentangy Meeting Room.

Come out to Improving for our monthly iOS and Mac meetings. This Month's Presentation: Nothing yet. (You should volunteer). What is Cocoaheads (http://cocoaheads.org/)? CocoaHeads is a group devoted to discussion of Apple Computer's Cocoa Framework for programming on MacOS X and iOS (including the iPhone, iPad and Apple Watch). During monthly meetings, members present on their projects and offer tutorials on various programming topics. What is BuckeyeCocoa (http://buckeyecocoa.org/)? BuckeyeCocoa is a group of Objective-C/Swift developers/enthusiasts. We host monthly Cocoaheads and near-weekly NSCoder meetings in Columbus, Ohio. The meetings are free to attend. Presentations! Presenters welcome! We are always in need of people willing to present material. Any Swift and/or Objective-C related topic is welcome. Times can be 5 minutes (i.e. lightning talks) to a maximum of 2 hours. Interested? Contact info is on the BuckeyeCocoa website. To volunteer for a presentation contact us at @BuckeyeCocoa on Twitter. Follow us on Twitter! @BuckeyeCocoa (https://twitter.com/#!/Buckeyecocoa/) For more information: http://buckeyecocoa.org/

Please see below for details of our April 15 event. Visit our [Eventbrite](https://www.eventbrite.ca/e/owasp-toronto-april-2026-tickets-1986283430209) page to RSVP! APIs power virtually every web and mobile application, accounting for over 80% of all Internet traffic. And APIs are under attack. Gartner states APIs have become the “most frequent attack vector," resulting in hundreds of highly successful, high profile breaches. This API security presentation covers 1) why attackers love APIs, 2) real-world breaches (and how they map to the OWASP API Security Top 10), and 3) best practices to keep APIs secure.

The global Azure community is coming together again, and Columbus is officially on the map. View the session lineup and speakers at [Global Azure Columbus 2026](https://coazure.github.io/cbus-global-azure-2026/) On **Saturday, April 18, 2026**, the Azure Columbus Meetup, DevOps Meetup, and Code and Coffee Meetup are hosting our local edition of Global Azure 2026. This is a free, community-driven event packed with learning, networking, and all things Microsoft Azure. Whether you’re building modern cloud-native apps, experimenting with AI agents, deploying containers, automating infrastructure, or just beginning your Azure journey, this event is for you! **What to Expect** * Engaging technical sessions * Real-world Azure architecture & cloud-native patterns * AI, agents, automation, and modern DevOps * Food and drinks (because learning burns calories) * Time to connect with fellow engineers, architects, and cloud enthusiasts **Who Should Attend?** * Software engineers (any language, any stack) * Cloud architects * DevOps engineers * Data professionals * AI explorers * Platform builders * Anyone who loves solving hard problems with great tools If you build, deploy, automate, scale, monitor, or optimize in Azure, you’ll feel right at home. **Why Global Azure?** Global Azure is a worldwide community event where Azure user groups host learning sessions on the same day across the globe. It’s grassroots. It’s technical. It’s practical. And it’s powered by people who genuinely love sharing what they’ve learned. And yes, it’s free to attend!

**Latest Dojo Location!** **Knotty Pine Brewing** 1765 W 3rd Ave, Columbus, OH 43212 We're going to try a new dojo location for a few weeks and see how it works Dojos are informal Python group study sessions where everyone interested in Python gathers to learn about Python, help others with Python, or just hang out. Everyone is welcome from Python beginners to experts. Bringing a laptop is encouraged (we'll have extension cords and power strips). If there's something you want to learn leave a comment on this invite so we can plan ahead. We're looking for speakers for our Monthly Meetups! Fill out the form if you are interested in presenting to the Python Community. https://forms.gle/ehSfUAC2WgR34Crq9

Christians in Tech is a community at the intersection of faith and technology. Our meetups are designed to spark meaningful conversations, promote knowledge sharing, and encourage growth—both in your career and your spiritual walk with God. Whether you're an experienced professional or just starting your tech journey, CIT welcomes you. Our Website [https://linktr.ee/citcbus](https://linktr.ee/citcbus) Sponsors and Partners * Improving (Venue Sponsor) * Bethel World Prayer Center (Fiscal Sponsor) * Fruits & Roots (Coffee Partner)

Want to be a speaker? submit your talk to our Call for Presenters!!! https://sessionize.com/cbus-hug-2026/

Bring your Raspberry Pi, Arduino, microcontroller, or any other electronic project and join fellow electronics makers for a night of creativity and collaboration! This session is open forum to share your current projects—whether complete or in progress, it’s all interesting! Whether you’re deep into embedded systems, exploring new ideas, or just getting started, you’ll find a welcoming space to collaborate, share, and get inspired. **New to electronics or curious about tinkering?** You’re absolutely welcome. If you’re a beginner and want to experiment, I’ll have a couple of starter kits available so you can try things out—whether that’s blinking your first LED, putting something on a display, or experimenting with simple sensors. No pressure and no experience required—just an interest in learning and building. While we continue to pursue a more permanent venue for this Meetup, we’ll be using public library facilities based on availability. This session will be at the Worthington Park Library in the Olentangy Meeting Room.

A WiA Collective Wisdom Exchange At the start of this year, we gathered to look back, set intentions, and imagine the next chapter. This is the follow-up. Not a check-in. Not a progress report. A small, facilitated circle to reconnect with what you said mattered — and honestly explore what’s actually happening now. Together, we’ll explore: • What you intended at the start of this year - and what that looks like three months in • What’s surprised you, supported you, or shifted • What the next chapter needs now that you know what you know If you were at our January gathering, bring whatever you made or wrote — your word, your artifact, your intention. We’ll look at it with fresh eyes. If this is your first time, you belong here too. You’ll start where we all started: with what’s true right now. Optional art materials will be available for anyone who wants to reflect creatively alongside conversation. If you brought something home from January, you’re warmly invited to bring it back. The intention is the same as always: everyone leaves feeling more clear, more connected, and a little lighter. Space is intentionally limited to keep the experience intimate. What to Expect • A small, welcoming circle (not a large meetup) • Structured conversation so everyone has space to speak • Reflection, listening, and lived experience — not advice-giving • Optional creative reflection alongside conversation • A calm, supportive environment Who This Is For Women and underrepresented folks working in or around agile, product, technology, leadership, or organizational change — especially those looking for honest conversation and community beyond frameworks and buzzwords. Good to Know • No preparation required • If you attended in January, we invite you to bring anything you created or wrote (or something that represents your intention at the start of the year) - it’s optional but invited • Participation is invitational; listening is always welcome • Creative activities are optional

**Important time note:** Please plan on arriving between 5:30 and 6:00 as the elevators lock after 6 and you'll need to message us and we'll need to come get you. The building address is 4450 Bridge Park The entrance is 6620 Mooney St, Suite 400 You will need to scan your ID at the door to get a visitor badge. **Abstract** GitHub Copilot is powerful, but what if you could scale from a solo AI assistant to an entire team of specialized agents working in parallel? This session introduces Squad: an open-source framework for multi-agent orchestration that lets you define teams of AI agents with specific roles, responsibilities, and expertise. We'll progress from Copilot basics to the Copilot CLI, explore how Agents add autonomy, and see how Instructions and Skills let you customize agent behavior. Then, the climax: a live demo where a Squad team of 3 agents (Lead, Developer, Tester) stands up and builds a working application in real-time, showcasing true multi-agent collaboration. Whether you're new to AI or exploring how to scale your use of Copilot, this session will show you what's possible when agents work as a team. **YouTube Link** TBD

**About this Event** Curious how your secure coding skills stack up in real-world scenarios? Join OWASP St. Louis for a **hands-on Secure Code Training Tournament** sponsored by Security Journey. This is not a lecture... you’ll be actively solving real vulnerabilities in a live, interactive environment. **What to Expect** * Hands-on secure coding challenges (break/fix format) * Real-world vulnerability scenarios developers face today * Friendly competition with a live leaderboard * Prizes awarded to the **top 3 participants** **Important Details** * **Laptop required** (you’ll be coding) * Hybrid format: join **in-person or remotely** * Pre-registration required to access the platform * You do not need to be an experienced developer or security expert to participate. The challenges start easy and progress from there. Come have fun! In addition to RSVPing to this Meetup event, please register here to secure your spot and get platform access: [https://forms.office.com/r/VpTMjg8Smw](https://forms.office.com/r/VpTMjg8Smw) Whether you're a developer, AppSec professional, or just getting started, this session is built to sharpen real skills! (\* OWASP does not endorse or recommend commercial products or services, allowing our community to remain vendor neutral with the collective wisdom of the best minds in software security) **Event Details** 📍 **Location:** RubinBrown, 7676 Forsyth Blvd., Suite 2100, Saint Louis, MO 63105 🗓 **Date/Time:** April 28, 2026 / 6:00pm CST **Food and Drink will be provided!** Please RSVP so that we can plan accordingly. ℹ️ **Parking Directions:** * Google map to “North Lyle Avenue & Forsyth Boulevard, Clayton, MO 63105” Link: https://maps.app.goo.gl/WYqyZ3Jv9cUBBF289 * Enter the **Parking Garage #4** (from Forsyth Blvd) next to Dry Bar * **Pull a ticket at the gate** and proceed into the garage, turning right. * Up the ramp is visitor parking. **You may have to go up past the 6th floor.** * **Take elevator to \*L** (Lobby of Centene Plaza C) * Check in at the OWASP sign-in table in the lobby; you'll be escorted up * **Bring your parking ticket with you** to get validated at the meetup. **Who Should Attend** * Application & security professionals * Software engineers and developers * IT leaders and managers * Anyone with an interest in application security * You DO NOT need to be an OWASP member to attend! **About OWASP** The Open Worldwide Application Security Project (OWASP) is a nonprofit foundation dedicated to improving the security of software. Local chapters provide opportunities to learn, network, and collaborate with others in the field. Come to learn more and participate in OWASP Saint Louis - your voice will continue to help shape what OWASP Saint Louis becomes next.

**Improving Office in Franklinton** Physical location: Improving Office 330 Rush Alley Suite #150 Columbus, OH 43215 Schedule: 6:00 p.m.: Socialize, eat, and drink. Improving will be providing pizza and beverages. 6:30 to 8:00 pm. Main meeting and presentation(s). Topic: This month Chris Pazsint will be talking about Agentic Coding. How does one use CLI Based Agents, and Agentic IDEs such as Cursor, Kiro, Antigravity? How to include agentic coding plugins for IDEs you already love such as Visual Studio Code. We meet on the last Monday of each Month. Presentations are given by members and friends of this group. If you would like to do a presentation (small or large) on a python topic, please contact Central OH Python at centralohpython@gmail.com

**Latest Dojo Location!** **Knotty Pine Brewing** 1765 W 3rd Ave, Columbus, OH 43212 We're going to try a new dojo location for a few weeks and see how it works Dojos are informal Python group study sessions where everyone interested in Python gathers to learn about Python, help others with Python, or just hang out. Everyone is welcome from Python beginners to experts. Bringing a laptop is encouraged (we'll have extension cords and power strips). If there's something you want to learn leave a comment on this invite so we can plan ahead. We're looking for speakers for our Monthly Meetups! Fill out the form if you are interested in presenting to the Python Community. https://forms.gle/ehSfUAC2WgR34Crq9