Cambridge, Mass. : National Bureau of Economic Research, 2020

Cambridge, Mass. : National Bureau of Economic Research, 2020

A simple CSS-only marquee effect for a menu based on Francesco Zagami's Dribbble shot.

CSS-Only Marquee Effect was written by Mary Lou and published on Codrops.

A simple tutorial on how to achieve an interactive mouseover/hover effect on images in some easy steps.

Interactive WebGL Hover Effects was written by Yuriy Artyukh and published on Codrops.

Three gooey morphing hover effects using SVG filters for menu links based on a demo by Graham Pyne.

Morphing Gooey Text Hover Effect was written by Mary Lou and published on Codrops.

Norman, M. A

Panel David Herman (twitter blog Effective JavaScript) Jamison Dance (twitter github blog) AJ O’Neal (twitter github blog) Joe Eames (twitter github blog) Merrick Christensen (twitter github) Tim Caswell (twitter github howtonode.org) Charles Max Wood (twitter github Teach Me To Code Rails Ramp Up) Discussion 01:01 - David Herman Introduction Mozilla Mozilla Research TC39 - ECMAScript 01:45 - Effective JavaScript by David Herman 04:27 - Reader Opinions & Controversy JavaScript:The Good Parts by Douglas Crockford 09:09 - ES3 Shimming 11:25 - Code: effectivejs/code 12:50 - Parts of the Book 15:54 - Blocking Web Gestures With getUserMedia: Part1: Aaron Frost 17:28 - Book Level of Difficulty Effective C++ by Scott Meyers 20:09 - Asynchronous APIs Recursion Tail-Call Optimization 26:51 - Programming Language Academics 30:55 - DOM Integration Effective C++ by Scott Meyers Effective STL by Scott Meyers 31:50 - Advice for JavaScript Beginners Eloquent Javascript by Marijn Haverbeke JavaScript Enlightenment by Cody Lindley How to Design Programs 33:16 - Advice for Programmers in General 34:53 - Performance 38:16 - The JavaScript Language 40:45 - Primitives Vs Wrapper Classes 42:37 - Semicolons 45:24 - -0/+0 Picks Jack (Tim) Putting Constants on the Left (AJ) Getting Started with Amazon AWS EC2 (1 year free VPS web hosting) (AJ) Notes on Distributed Systems for Young Bloods: Jeff Hodges (Jamison) Hurdles getting started with Ember.js (Jamison) Grieves (Merrick) The Scala Programming Language (Merrick) Antoine Dufour (Joe) Torchlight II (Joe) Appliness Digital Magazine (Joe) Powermat Home & Office Mat (Chuck) Une Bobine (Chuck) The Rust Programming Language (David) mozilla/servo (David) Roominate Toy (David) OpenWest Conference Call For Papers (AJ) Transcript CHUCK:  The most effective way to hack is quickly. [Hosting and bandwidth provided by the Blue Box Group. Check them out at bluebox.net.] [This episode is sponsored by Component One, makers of Wijmo. If you need stunning UI elements or awesome graphs and charts, then go to Wijmo.com and check them out.] CHUCK:  Hey everybody and welcome to Episode 44 of the JavaScript Jabber show. This week on our panel, we have Jamison Dance. JAMISON:  Hello. CHUCK:  AJ O’Neal. AJ:  Yo! Yo! Yo! Coming at you live from the living roomisphere of Provo, Utah. CHUCK:  We have Joe Eames. JOE:  Hi. CHUCK:  Merrick Christensen. MERRICK:  What’s up guys? CHUCK:  Tim Caswell. TIM:  Hello. CHUCK:  I'm Charles Max Wood from devchat.tv and this week, we have a special guest, Dave Herman. DAVE:  Hi there. CHUCK:  So Dave, you haven’t been on the show before. Do you want to introduce yourself? DAVE:  Sure. I work for Mozilla. I have sort of helped create this new department called Mozilla Research where we do a whole bunch of web platform experiments and new technology for the web. And I also am on the horribly named TC39, the standards organization for ECMAScript, working on the next edition of the JavaScript standard. CHUCK:  Cool. DAVE:  Oh, and I wrote this book. CHUCK: You did this book. TIM:  You didn’t just read it and then become an expert on the book and then talk on a podcast about it? [Laughter] CHUCK:  So, I heard about this book. I’m a little curious when you started writing the book, I mean, what was the idea behind it? What inspired it? DAVE:  To tell you the truth, I had no intention of writing a book, it didn’t occur to me. But the publishers reached out to me, I guess they heard of me through TC39, maybe ‘es-discuss’ or something. But they said, “Okay we’ve got this series, this Effective series.” And I was very familiar with Effective C++ which I think is a great book and I really like the format. And just when they approached me, I kind of thought, “You know,

Panel:

• AJ O’Neal
• Aimee Knight

Special Guests: Greg Whitworth

In this episode, the JavaScript Jabber panelists discuss the effects of JavaScript on CSS with Greg Whitworth. Greg works on Microsoft EdgeHTML, specifically working on the Microsoft Layout team, is on the CSS working group, and is involved with the Houdini task force. They talk about JS engines and rendering engines, what the CSSOM is, why it is important to understand the rendering engine, and much more!

In particular, we dive pretty deep on:

• Greg intro
• What is the Houdini task force?
• Extensible web manifesto
• DOM (Document Object Model)
• Layout API
• Parser API
• Babel
• jQuery
• Back to basics
• JavaScript engine and rendering engine
• What is the CSSOM?
• Every browser has its separate JS engine
• Browsers perspective
• Aimee ShopTalk Podcast Episode
• Why is it important to understand how the rendering engine is working?
• Making wise decisions
• Give control back to browser if possible
• When you would want to use JavaScript or CSS
• Hard to make a hard or fast rule
• CSS is more performant
• Overview of steps
• And much, much more!

Links:

• Parser API
• Babel
• jQuery
• Aimee ShopTalk Podcast Episode
• JavaScript
• @gregwhitworth
• GWhitworth.com
• Greg’s GitHub
•  

Sponsors

• Kendo UI
• Linode
• FreshBooks

Picks:

AJ

• Microsoft Surface
• Microsoft Cursor

Aimee

• Greg’s Talk
• What Your Conference Proposal Is Missing by Sarah Mei

Greg

• Aimee ShopTalk Podcast Episode
• Jake Archibald Tasks Talk

Choden, Thinley, author

Clavijo, Katherine, author

Online Resource

Create a simple CSS folded-corner effect without images or extra markup. It works well in all modern browsers and is best suited to designs with simple colour backgrounds.

Demo: Pure CSS folded-corner effect

Known support: Firefox 3.5+, Chrome 4+, Safari 4+, Opera 10+, IE 8+

This post is going to expand on the technique used to create the folded-corner effect that is part of the demo page for Multiple Backgrounds and Borders with CSS 2.1. As a starting point it will look to recreate the appearance of the note style used on the Yiibu‘s fantastic web site. Where Yiibu uses images, this will use pseudo-elements.

Nothing complicated. Any element will do and there’s no need for extra markup. It’s just a simple coloured box to start with. Browsers with no support for pseudo-elements, such as IE6 and IE7, will only be capable of displaying this.

Adding position:relative makes it possible to absolutely position the pseudo-element.

.note {
  position: relative;
  width: 30%;
  padding: 1em 1.5em;
  margin: 2em auto;
  color: #fff;
  background: #97C02F;
}

The folded-corner

The folded-corner is created from a pseudo-element that is positioned in the top corner of the box. The pseudo-element has no width or height but is given a thick border. Varying the size of the border will vary the size of the folded-corner.

In this example, the top and right borders are set to colours that match the background colour of the box’s parent. The left and bottom border are then given a slightly darker or lighter shade of the box’s background colour.

.note:before {
  content: "";
  position: absolute;
  top: 0;
  right: 0;
  border-width: 0 16px 16px 0;
  border-style: solid;
  border-color: #658E15 #fff;
}

This is all that’s needed to create a simple folded-corner effect like that found on Yiibu.

Firefox 3.0 doesn’t allow for the positioning of pseudo-elements. You can throw in a couple of extra styles to help tidy things up in that browser.

.note:before {
  ...
  display: block;
  width: 0;
}

Adding a subtle shadow

The appearance of a fold can be slightly enhanced by adding a box-shadow (for browsers that support it) to the pseudo-element. Setting overflow:hidden on the note itself will help hide parts of the shadow that would disrupt the folded-corner effect.

.note:before {
  ...
  -webkit-box-shadow: 0 1px 1px rgba(0,0,0,0.3), -1px 1px 1px rgba(0,0,0,0.2);
  -moz-box-shadow: 0 1px 1px rgba(0,0,0,0.3), -1px 1px 1px rgba(0,0,0,0.2);
  box-shadow: 0 1px 1px rgba(0,0,0,0.3), -1px 1px 1px rgba(0,0,0,0.2);
}

Rounded corners

It’s also relatively simple to make this work with rounded corners if desired. Unfortunately, every modern browser has some form of border-radius bug – including those using the non-prefixed property – which means a slight work around is needed.

Webkit browsers are the only browsers that can come anywhere close to rounding the corner of the pseudo-element if it only has 2 borders. Opera 11 and Firefox 3.6 make a mess of it. Opera 11 makes the biggest mess.

Using 4 borders avoids the problems in Opera 11 and Firefox 3.6. But it will trigger a bug in Safari 5 that leaves the diagonal looking a little jaggy. We can get around this problem by setting at least one border colour to be transparent.

When a background colour is applied to the pseudo-element it will show through the transparent border. Ideally, this approach would form the basis of the entire effect because we could reduce the amount of code needed. But Opera 11 will not show the background colour through the transparent borders unless a border-radius has been set.

.note-rounded:before {
  content: "";
  position: absolute;
  top: 0;
  right: 0;
  border-width: 8px;
  border-color: #fff #fff transparent transparent;
  background: #658E15;
  -moz-border-radius: 0 0 0 5px;
  border-radius: 0 0 0 5px;
  display: block;
  width: 0;
}

The CSS file on the demo page has more comments on the work arounds. Every browser has its own peculiarities when it comes to using border-radius or borders on elements with no width or height. This is the merely simplest solution I’ve found to deal with those browser inconsistencies.

The final code

This is all the CSS needed to create a simple folded-corner effect, with a subtle shadow, from a single HTML element. To include a variant with rounded corners, the “note” object can be extended with the modifications described previously.

.note {
  position: relative;
  width: 30%;
  padding: 1em 1.5em;
  margin: 2em auto;
  color: #fff;
  background: #97C02F;
  overflow: hidden;
}

.note:before {
  content: "";
  position: absolute;
  top: 0;
  right: 0;
  border-width: 0 16px 16px 0;
  border-style: solid;
  border-color: #fff #fff #658E15 #658E15;
  background: #658E15;
  -webkit-box-shadow: 0 1px 1px rgba(0,0,0,0.3), -1px 1px 1px rgba(0,0,0,0.2);
  -moz-box-shadow: 0 1px 1px rgba(0,0,0,0.3), -1px 1px 1px rgba(0,0,0,0.2);
  box-shadow: 0 1px 1px rgba(0,0,0,0.3), -1px 1px 1px rgba(0,0,0,0.2);
  /* Firefox 3.0 damage limitation */
  display: block; width: 0;
}

.note.rounded {
  -moz-border-radius: 5px 0 5px 5px;
  border-radius: 5px 0 5px 5px;
}

.note.rounded:before {
  border-width: 8px;
  border-color: #fff #fff transparent transparent;
  -moz-border-radius: 0 0 0 5px;
  border-radius: 0 0 0 5px;
}

The demo page shows the final effect, an example with rounded corners, and how different coloured notes are easy to create from this base.

This technique works less well when the element receiving the folded-corner effect is sitting on top of a background image rather than a simple background colour. However, the same limitation exists for image-based methods of creating this effect.

Weitzel, Sloan R., author

Kaynak, Hale, 1956-

Fyock, Catherine D., author

Geraldi, Joana G., 1979- author

Wilson, Meena S., author

Maciariello, Joseph A., author

Kerkhof, Twan van de, author

Interview with Nora Pashayan, BSc MSc MSt MD PhD FFPH, author of Cost-effectiveness and Benefit-to-Harm Ratio of Risk-Stratified Screening for Breast Cancer: A Life-Table Model

This summary reviews a randomized clinical trial that explores the effect of the early introduction of solid foods on infant sleep.

Association of Early Introduction of Solids With Infant Sleep: A Secondary Analysis of a Randomized Clinical Trial

Interview with Brooke Nickel and Juan Brito, MD, MSc, authors of Effect of a Change in Papillary Thyroid Cancer Terminology on Anxiety Levels and Treatment Preferences: A Randomized Crossover Trial

Interview with Larry B. Goldstein, MD, author of Effect of Dextroamphetamine on Poststroke Motor Recovery: A Randomized Clinical Trial

Interview with Ananias C Diokno, MD, author of Effect of Group-Administered Behavioral Treatment on Urinary Incontinence in Older Women: A Randomized Clinical Trial

Interview with Mikel Izquierdo, Ph.D, and Nicolás Martínez-Velilla, PhD, authors of Effect of Exercise Intervention on Functional Decline in Very Elderly Patients During Acute Hospitalization: A Randomized Clinical Trial, and William J. Hall, MD, author of A Novel Exercise Intervention and Functional Status in Very Elderly Patients During Acute Hospitalization

Interview with Guido Beldi, Consultant Surgeon, author of Effectiveness of Prophylactic Intraperitoneal Mesh Implantation for Prevention of Incisional Hernia in Patients Undergoing Open Abdominal Surgery: A Randomized Clinical Trial

Interview with Amanda H. Kerbrat, MSW, author of Effect of Augmenting Standard Care for Military Personnel With Brief Caring Text Messages for Suicide Prevention: A Randomized Clinical Trial

Interview with Pim Cuijpers, PhD, author of Effectiveness and Acceptability of Cognitive Behavior Therapy Delivery Formats in Adults With Depression: A Network Meta-analysis

Interview with Adrian F. Hernandez, MD, MHS, author of Clinical Effectiveness of Direct Oral Anticoagulants vs Warfarin in Older Patients With Atrial Fibrillation and Ischemic Stroke: Findings From the Patient-Centered Research Into Outcomes Stroke Patients Prefer and Effectiveness Research (PROSPER) Study

Interview with Kausik K. Ray, MD, author of Effect of 1 or 2 Doses of Inclisiran on Low-Density Lipoprotein Cholesterol Levels: One-Year Follow-up of the ORION-1 Randomized Clinical Trial, and Maarten JG. Leening, MD, PhD, author of Safety and Tolerability of Sustained Lipid-Lowering Therapy: Trial Data and Public Perception in a World Where Vaccines and Statins Are About to Collide