Yes, it's perfectly fine to change the border of an image using a ref in React — especially if you want to do it dynamically, such as when a button is clicked.

Here’s a simple example using useRef to add a border to an image on button click:

✅ React Example: Add Border to Image with `ref`

import { useRef } from "react";
 
function App() {
  const imageRef = useRef(null);
 
  const handleAddBorder = () => {
    imageRef.current.style.border = "5px solid #2196F3"; // blue border
    imageRef.current.style.borderRadius = "12px";
  };
 
  return (
    <div>
      <img
        ref={imageRef}
        src="your-image-url.jpg"
        alt="With Border"
        width="200"
      />
      <br />
      <button onClick={handleAddBorder}>Add Border</button>
    </div>
  );
}

✅ Better Alternative: Toggle a CSS Class

import { useRef } from "react";
import "./styles.css";
 
function App() {
  const imageRef = useRef(null);
 
  const handleToggleBorder = () => {
    imageRef.current.classList.toggle("custom-border");
  };
 
  return (
    <div>
      <img
        ref={imageRef}
        src="your-image-url.jpg"
        alt="With Border"
        width="200"
      />
      <br />
      <button onClick={handleToggleBorder}>Toggle Border</button>
    </div>
  );
}

styles.css

.custom-border {
  border: 4px dotted green;
  border-radius: 10px;
  padding: 6px;
}

✅ Yes, it's okay to use refs for styling, especially for dynamic, one-off effects. But for more maintainable and scalable styling, consider toggling classes with ref.current.classList.

Would you like to remove the border after a few seconds automatically?

Main Example

To remove a CSS class from elements stored in your Map (via ref), you can use classList.remove().

In your case, if you want to remove a specific class (e.g., selected-border) from all images before adding it to the clicked one, follow this improved approach:

✅ Step 1: Define a custom border class in CSS (e.g., Tailwind or your own)

/* styles.css or inside Tailwind config */
.selected-border {
  border: 2px solid red;
  border-radius: 8px;
}

Or for Tailwind users:

className="border-2 border-red-500 rounded-lg"

✅ Step 2: Modify `scrollToView()` to remove and add the class

function scrollToView(index) {
  const map = getMap();
 
  // 🔴 Remove class from all nodes
  for (let node of map.values()) {
    node?.classList.remove("selected-border");
  }
 
  // ✅ Add class to the selected node
  const node = map.get(index);
  if (node) {
    node.scrollIntoView({
      behavior: "smooth",
      block: "nearest",
      inline: "center",
    });
    node.classList.add("selected-border");
  }
}

✅ Step 3: Add the class name in the image wrapper (li)

Update your li element:

<li
  key={member.name}
  ref={(node) => {
    const map = getMap();
    if (node) {
      map.set(member.name, node);
    } else {
      map.delete(member.name);
    }
  }}
  className="flex-shrink-0 text-center transition-all duration-300"
>

Now, when you click a button, it:

Removes the selected-border class from all images
Adds it only to the clicked one

Would you prefer using Tailwind utility classes instead of writing custom CSS?

ডাটা ফেচ করার আদ্যপান্ত জানি Life Cycle of Useeffect

✅ React Example: Add Border to Image with ref