Spotlight

A spotlight effect with Tailwind CSS, good for drawing attention to a particular element on the page.

Spotlight
is the new trend.

Spotlight effect is a great way to draw attention to a specific part of the page. Here, we are drawing the attention towards the text section of the page. I don't know why but I'm running out of copy.

Installation

Install dependencies

npm i framer-motion clsx tailwind-merge

Add util file

lib/utils.ts

import { ClassValue, clsx } from "clsx";
import { twMerge } from "tailwind-merge";
 
export function cn(...inputs: ClassValue[]) {
  return twMerge(clsx(inputs));
}

Copy the source code

components/ui/Spotlight.tsx

import React from "react";
import { cn } from "@/lib/utils";
 
type SpotlightProps = {
  className?: string;
  fill?: string;
};
 
export const Spotlight = ({ className, fill }: SpotlightProps) => {
  return (
    <svg
      className={cn(
        "animate-spotlight pointer-events-none absolute z-[1]  h-[169%] w-[138%] lg:w-[84%] opacity-0",
        className
      )}
      xmlns="http://www.w3.org/2000/svg"
      viewBox="0 0 3787 2842"
      fill="none"
    >
      <g filter="url(#filter)">
        <ellipse
          cx="1924.71"
          cy="273.501"
          rx="1924.71"
          ry="273.501"
          transform="matrix(-0.822377 -0.568943 -0.568943 0.822377 3631.88 2291.09)"
          fill={fill || "white"}
          fillOpacity="0.21"
        ></ellipse>
      </g>
      <defs>
        <filter
          id="filter"
          x="0.860352"
          y="0.838989"
          width="3785.16"
          height="2840.26"
          filterUnits="userSpaceOnUse"
          colorInterpolationFilters="sRGB"
        >
          <feFlood floodOpacity="0" result="BackgroundImageFix"></feFlood>
          <feBlend
            mode="normal"
            in="SourceGraphic"
            in2="BackgroundImageFix"
            result="shape"
          ></feBlend>
          <feGaussianBlur
            stdDeviation="151"
            result="effect1_foregroundBlur_1065_8"
          ></feGaussianBlur>
        </filter>
      </defs>
    </svg>
  );
};

Copy the highlighted `spotlight` animation into `tailwind.config.js` file

/** @type {import('tailwindcss').Config} */
module.exports = {
  content: ["./src/**/*.{ts,tsx}"],
  darkMode: "class",
  theme: {
    extend: {
      animation: {
        spotlight: "spotlight 2s ease .75s 1 forwards",
      },
      keyframes: {
        spotlight: {
          "0%": {
            opacity: 0,
            transform: "translate(-72%, -62%) scale(0.5)",
          },
          "100%": {
            opacity: 1,
            transform: "translate(-50%,-40%) scale(1)",
          },
        },
      },
    },
  },
  plugins: [],
};

Props

Prop name	Type	Description
`className`	`string`	The class name of the spotlight component.
`fill`	`string`	Hex color for the spotlight fill.

This component is inspired from TypeHero's landing page

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