Different combinations allowed us to make different versions, all using the same techniques that leave us with clean, maintainable code. On mouse over, we will move the button so it appears 3d. And even though they are different effects, they all take the same approach of using CSS background properties, custom properties, and calc(). CSS is going to handle this math for us. It is time to familiarize you with a practical sample that is well-suited to long pages pulled by vertical scrolling. The question now is: what values do we use for background-position? See the Pen MGLRyY by GreenSock ( @GreenSock) on CodePen. Site design / logo 2023 Stack Exchange Inc; user contributions licensed under CC BY-SA. We need to also update the position on hover. It should be like: Also you'd need to callibrate your x and y to distances from left of box1 and top box1 repectively. You will be glad you did :). We are also introducing another Class Method called this.updateElementPostion() which fires on theonMouseEnter event. At this point, you can try replacing the update function by a console.log() and play with the updateRate to see how it all works together. Lets not forget the DRY switching technique we used in the previous articles of this series to help reduce the amount of code by using only one variable for the switch: If youre wondering why I reached for the RGB syntax for the main color, its because I needed to play with the alpha transparency. The only difference is that we have two gradients with two different positions. They can be managed and maintained independently. We are going to incrementally update your Class Methods. Direction: Choose from Opposite or Direct. Motion Effects. Move background perspective on mouse move effect. Source: https://developer.mozilla.org/en-US/docs/Web/API/Element/getBoundingClientRect. There is something magical that happens when photos and/or your entire UI achieve a floating look. I have been omitting the Z axis, but take a look at this 2 minute video here before we go any further: When we tilt our image, it gives the illusion of 3D movement. We first transform our gradient to use the color only once: The syntax might look a bit strange, but we are telling the browser that one color is applied to two color stops, and thats enough to define a gradient in CSS. The good news is the DOM is usually pretty declarative, so once you figure out the formula, its reuseable. We get a gap equal to the height, so we actually need to do is increase the size of each gradient by half the height on hover for them to cover the whole element. It provides direct access to the DOM Node, but React manages the DOM for us. DigitalOcean provides cloud products for every stage of your journey. 9,715 posts. What can a lawyer do if the client wants him to be acquitted of everything despite serious evidence? What is the different? Asking for help, clarification, or responding to other answers. We need a more complex transition for this effect. Same hover effect, but a different ending to the animation: We have three background layers two gradients and the background-color defined using --_c variable which is initially set to transparent (#0000). It's free to sign up and bid on jobs. Lets translate this into code: Note the use of two transition values. The browser is doing what we call repaints and reflows. Not letting React manage your DOM elements is like paying an accountant to track every cent of your money and then losing receipts. It would be too long to detail each one but with what we have learned so far you can easily understand the code. You can spot them by looking forcb(e). Use your mouse to create links between two neighboring points. There is something magical that happens when photos and/or your entire UI achieve a floating look. Callbacks There are some callbacks sprinkled around the Class. We like optimizing performance. You can see the background properties at work in that demo, as well as how we can use custom properties and the calc() function to do even more. We have a difference of 100% that we can express using calc(), like this: --p will change from 0% to 100%, but the backgrounds position will change from 100% to 0%, thanks to calc(). To subscribe to this RSS feed, copy and paste this URL into your RSS reader. As you could imagine, we are trending towards the worst idea ever when we consider re-renderingonMouseMove. Did you manage to find something helpful for you? Here's an example that moves the background directly in JavaScript, but with a transition applied so it slides to the new position rather than jerking around the first time you enter: Here is what you can do to flag clementgaudiniere: clementgaudiniere consistently posts content that violates DEV Community's We need to make the component reusable. Then, when the mouse cursor leaves the link, the transition plays in reverse . Anything funny is a plus. On mouse hover we have it set to a .3s value, which gives us this: On mouse out, --t is undefined, so the fallback value will be used: Shouldnt we have background-size in the transition? Top of the page where all 4 together the 4th hover is faulty. Note that resizing the page will cause some problems because the position of the container changes in the page. Its hard to explain but easy to see. Again, you will probably see no visual changes because the text color and background-color already changed on hover. Then, on mouse out, we apply an instant change to everything (notice the 0s delay), except for the color and background-color that have a transition. By doing so, we also lower the number of computations done by the clients computer. y . If you can get this working without binding in the constructor and with the code shortened a bit, please share in the comments. But note that it lacks Firefox supports due to a known bug. You are probably surprised how small the code is, but you will see how we got there. Initially, we have both gradients with zero dimensions in Step 1. Take a look at Tim Holman's codepen. Can airtags be tracked from an iMac desktop, with no iPhone? We made four super cool hover effects! We only need a transition value for the background-size. It will help improve your visitors dwell time. Thank dog. If the text goes to second line in some cases then ME of blue shade is showing on HOVER of white color. Once unpublished, all posts by clementgaudiniere will become hidden and only accessible to themselves. Before we end, let me share a version of that last hover effect that Ana Tudor cooked up. The background-position property sets the starting position of a background image. Wed better do some testing! Paired with particle animations, vivid 3D polygonal backgrounds, or some original ideas it is able to give a cutting edge feel to any user experience thereby making the website look even more alluring and exceptional. JANK: If the browser needs to repaint before it is done calculating everything it tries to, you will see this janky behavior because the browser basically abandons the work it was doing to keeps going. Maybe? Lastly, we apply the fading to color and a background-color to create the mouse-out part of the animation. The first thing we do is to define our variables: Then we create a transparent border with widths that use the above variables: The top and right sides of the element both need to equal the --b value while the bottom and left sides need to equal to the sum of --b and --d (which is the --_s variable). We are not using fat arrow syntax for the mouse events because we will be intentionally passing around the context of this in callbacks. These are React Synthetic Events that fire on those events. Posted by . I am using 50.1% in that demo instead of 50% for the background size because it prevents a gap from showing between the gradients. But were here to look at advanced hover effects, right? I almost forgot to mention that requestAnimationFrame also stops consuming CPU in inactive browser tabs. Learn more about bidirectional Unicode characters, . When the mouse hits an area of an image, it expands and becomes colorful, grabbing the overall attention. ----- Create your website on Tilda for free: https://tilda.ccSee the com. How can I select an element with multiple classes in jQuery? We now have a nice and smooth transition between each update. Web Design and Development Online Magazine. This was so applicable to what I needed to do! Lets introduce a custom property to avoid the repetition of background-size: We are not defining --p initially, so the fallback value (0% in our case) will be used. The background-size values are trivial, but the ones for background-position are not. The effect relies on a combination of CSS pseudo-elements, transforms, and transitions. For example, if we tilt it to the right, the right side will appear farther away, so the length of the right side will get smaller. If I understand correctly you could run a loop that tweens every box. We left those blank above. Reeses peanut butter cup-fueled coding monster who dwells in the web. That means the width is going from 0 to 100% while the background itself remains at full height. stuff floating on top of boiled water. We are avoiding setState because we dont want to trigger any unecessary re-rendering. We can do that in two steps: To do this, we need to update the background-position on hover as well: This means that, on hover, we instantly change the background-position from left (see, we needed that value!) Its why immutability is a thing, and its why functions are first class citizens. Iconfinder offers over 1.5 million beautiful icons for creative professionals to use in websites, apps, and printed publications. It interacts with the mouse both as a single unit and each particle individually. Here is a sampler pack for how to use our Phase 6 refined gem: Source: https://codepen.io/alexnoz/pen/brazWd, Follow me on Twitter. Handcrafted in Singapore. I try to constantly drop engineering gems, especially full-stack JavaScript related: Lets slap some boilerplate in, so were all on the same page. I probably should have done a version that also works with the touchmove event. For blue, the opposing corners are the inverse of eachother. Its an improvement! Simmer down, its not that crazy if we break down the process into manageable chunks. The main point behind this post is to provide an example of a cool CSS-Trick and explain how it can be done. First, lets start with a simple background-size transition: We are animating the size of a linear gradient from 0 100% to 100% 100%. Lets translate that into code: The positions are pretty clear. If you want to read more, I recommend starting with the React Documentation: If you want to dig deeper, start with this article: We made our component a Class so we can sprinkle some methods into it (and manage state as well, because Classes are for Components that deal with behavior right?). colorado river rv campground. When the counter reaches the updateRate, an update will be made. I prefer to work near ES6+, node.js, microservices, Neo4j, React, React Native; I compose functions and avoid classes unless private state is desired. The span must be in position: absolute;, and have a border-radius of 100%, in order to create circular blocks. How do I check if an element is hidden in jQuery? Update the 3D rotation of the inner div when the appropriate time comes as the mouse moves over the container. Pure CSS Border Animation. Are you sure you want to hide this comment? We can still use one variable and update our code slightly to achieve the opposite effect. Is it correct to use "the" before "materials used in making buildings are"? See the Pen. Since we are making a reusable component, we need some default settings. For the first hover effect, I wonder why is background-repeat: no-repeat; has to be added for it to work? It would be great if you could use these animations with tailwind css, but the use of --c --s variables are complicated to integrate with tailwind classes. The code is almost the same as the other hover effects weve covered. First, we need a container with another inner element. We are essentially cutting out the middleman because we dont need him. hii chris, i wanted to build image zooming when you hover over image and zoomed version showed on side div. http://www.albertosarullo.com/blog/javascript-accelerometer-demo-source. I may need another article to explain this quirk but always remember to add the unit when dealing with custom properties. The important thing is that it does this, and then it calculates a number of things and then repaints again. using shorthand, removing default values, avoiding redundant values, etc) to simplify things down as much as possible. In most cases, you can attach a ref to the DOM node and avoid using findDOMNode at all. Tim Holman has blessed the audience with another brilliant concept. The last thing we have left is to figure out the backgrounds size. In reality, all 4 corners always add up to 360 degrees. Oof, we are done! One gradient starts at top left (0 0) and ends at bottom left (0 100%) while the other starts at top right (100% 0) and ends at bottom right (100% 100%). This one will use two semi-transparent white color values that overlap the first previous gradient to create different shades of the main color, giving us the illusion of shading and depth. A conic-gradient will work for that: We add another gradient for the third part of the trick. Or, you could move an actual element instead (rather than the background-position). content-box is the mask-clip value which behaves the same as background-clip. Built on Forem the open source software that powers DEV and other inclusive communities. Set up your CodePen CSS. You are having the quotes in jquery css method incorrectly. And if we keep the actual configuration were unable to move our gradient.