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<p>我已經(jīng)在react和css中實(shí)現(xiàn)了一個(gè)模態(tài)，目前，當(dāng)我打開它時(shí)，我已經(jīng)實(shí)現(xiàn)了一個(gè)向上滑動(dòng)的動(dòng)畫，其中模態(tài)從底部向上滑動(dòng)，但是當(dāng)我關(guān)閉它時(shí)我希望它向下滑動(dòng)，我無(wú)法弄清楚如何準(zhǔn)確創(chuàng)建向下滑動(dòng)的動(dòng)畫，有人可以幫忙嗎？ 代碼=></p> <pre class="brush:php;toolbar:false;">import "./styles.css"; import react, { useState } from "react"; export default function App() { const [isModalOpen, setIsModalOpen] = useState(false); return ( <div> <button onClick={() => setIsModalOpen(true)}>open </button> {isModalOpen && ( <div className={`modal-overlay`}> <div className={`modal-content`}> <div className="feedbackModalHeader"> <img src="/assets/dislike_modal.svg" alt="" className="dislikeBtnNonFilled" /> <p className="provideFeedback">Provide additional feedback</p> </div> <button onClick={() => setIsModalOpen(false)}> close </button> </div> </div> )} </div> ); }</pre> <p>css 代碼=></p> <pre class="brush:php;toolbar:false;">.modal-overlay { position: fixed; top: 0; left: 0; right: 0; bottom: 0; background-color: rgba(0, 0, 0, 0.5); display: flex; align-items: center; justify-content: center; z-index: 9999; transition: opacity 0.3s ease; } * { max-width: 100%; } .modal-content { background: #f5f0f0; padding: 20px; border-radius: 4px; box-shadow: 0 2px 10px rgba(0, 0, 0, 0.15); z-index: 999; transform: translateY(100%); animation: slide-up 0.3s ease-out forwards; width: 59rem; border-radius: 8px; margin-left: auto; margin-right: auto; box-shadow: 0 4px 20px 0 rgb(0 0 0 / 10%), 0 1px 2px 0 rgb(0 0 0 / 6%); height: 21rem; position: relative; left: 2rem; } @keyframes slide-up { from { transform: translateY(100%); } to { transform: translateY(0); } } .close-button { position: absolute; top: 10px; right: 10px; border: none; background: transparent; font-size: 24px; cursor: pointer; } .provideFeedback { font-size: 20px; } .feedbackModalHeader { display: flex; align-items: center; gap: 1.2rem; margin-top: 0.8rem; }</pre> <p>程式碼沙箱連結(jié) => https://codesandbox.io/s/dark-river-6ckllv?file=/src/styles.css</p>

.modal-slide-down {
  animation-name: slide-down;
  animation-duration: 0.5s;
  animation-fill-mode: forwards;
}

@keyframes slide-down {
  0% {
    transform: translateY(-100%);
    opacity: 0;
  }
  100% {
    transform: translateY(0);
    opacity: 1;
  }
}

const [isOpen, setIsOpen] = useState(false);

<button onClick={() => setIsOpen(true)}>Open Modal</button>

<div className={`modal ${isOpen ? 'modal-slide-down' : ''}`}>
  {/* Modal content goes here */}
</div>