CSS+JS는 사랑 같은 버튼을 구현합니다(코드 예)

<!-- fullLove.html -->
<div class="likeBtn" id="likeBtn">
    <span class="heart" id="heart"></span>
</div>

/* fullLove.css */
.heart{
    background-color: #8a93a0;
    height: 13px;
    width: 13px;
    transform: rotate(-45deg) scale(1);
    display: inline-block;
}
.heart::before {
    content: '';
    position: absolute;
    top: -50%;
    left: 0;
    background-color: inherit;
    border-radius: 50%;
    height: 13px;
    width: 13px;
}
.heart::after {
    content: '';
    position: absolute;
    top: 0;
    right: -50%;
    background-color: inherit;
    border-radius: 50%;
    height: 13px;
    width: 13px;
}

// love.js
const likeBtn = document.getElementById('likeBtn');
const heart=document.getElementById('heart')
likeBtn.addEventListener('mousemove',() => {
  heart.classList.add('heratPop')
})
likeBtn.addEventListener('mouseout',() => {
  heart.classList.remove('heratPop')
})

/* fullLove.css */
.heratPop{
    animation: pulse 1s linear infinite;
}
@keyframes pulse {
    0% {
            transform: rotate(-45deg) scale(1);
    }
    10% {
            transform: rotate(-45deg) scale(1.1);
    }
    20% {
            transform: rotate(-45deg) scale(0.9);
    }
    30% {
            transform: rotate(-45deg) scale(1.2);
    }
    40% {
            transform: rotate(-45deg) scale(0.9);
    }
    50% {
            transform: rotate(-45deg) scale(1.1);
    }
    60% {
            transform: rotate(-45deg) scale(0.9);
    }
    70% {
            transform: rotate(-45deg) scale(1);
    }
}

// love.js
function addHearts(content) {
  for(let i=0; i<10; i++) {
    setTimeout(() => {
      const fullHeart = document.createElement(&#39;div&#39;);
      fullHeart.classList.add(&#39;hearts&#39;);
      fullHeart.innerHTML = &#39;<span class="heart"></span>&#39;;
      fullHeart.style.left = Math.random() * 100 + &#39;%&#39;;
      fullHeart.style.top = Math.random() * 100 + &#39;%&#39;;
      fullHeart.style.transform = `translate(-50%, -50%) scale(${Math.random()+0.3}) `
      fullHeart.style.animationDuration = Math.random() * 2 + 3 + &#39;s&#39;;
      fullHeart.firstChild.style.backgroundColor=&#39;#ed3056&#39;
      content.appendChild(fullHeart);
      setTimeout(() => {
        fullHeart.remove();
      }, 3000);
    }, i * 100)
  }
}

/* fullLove.css */
.hearts {
    position: absolute;
    color: #E7273F;
    font-size: 15px;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    animation: fly 3s linear forwards;
}
@keyframes fly {
    to {
        transform: translate(-50%, -50px) scale(0);
    }
}