我目前在 html 中有一個(gè)段落標(biāo)簽，里面有長(zhǎng)文本。我還有一個(gè)按鈕，單擊該按鈕后應(yīng)展開和縮回文本部分。使用它是因?yàn)槲谋咎L(zhǎng)，所以我添加了一個(gè)“閱讀更多”按鈕來(lái)展開并顯示全文。現(xiàn)在我無(wú)法擴(kuò)展該段落。相反，當(dāng)單擊該按鈕時(shí)，它會(huì)淡入背景并且永遠(yuǎn)不會(huì)顯示。超文本標(biāo)記語(yǔ)言  <div class="infos">    <p class="name">Mr Big</p>    <br>    <p class="job">Founder & Co-Owner</p>    <p class="read-more"> Lorem IPsum Lorem IPsumLorem IPsumLorem IPsumLorem IPsumLorem IPsumLorem long text...</p>  </div>  <div class="button_container">     <button class="btn2">       <span>Read more...</span>    </button></div>CSS.infos .read-more{    font-size: 15px;    font-weight: 500;    color: rgb(230, 241, 255);    font-style: italic;    line-height: 1.5;    position: relative;    width: 100%;    text-align: center;    margin: 0 auto; padding: 15px 10px;    overflow: hidden;    max-height: 170px;    /* "transparent" only works here because == rgba(0,0,0,0) */    background-image: linear-gradient(to top, transparent, #434343);}.btn2 {    border: none;    display: block;    text-align: center;    cursor: pointer;    text-transform: uppercase;    outline: none;    overflow: hidden;    position: absolute;    color: #fff;    font-weight: 700;    font-size: 10px;    background-color: #59646c;    padding: 10px 30px;    margin: 0 auto;    box-shadow: 0 5px 15px rgba(0,0,0,0.20);    border-radius: 25px;}.btn2 span {    position: relative;    z-index: 1;}.button_container {    position: relative;    left: 0;    right: 0;    top: 30%;}.description, .link {    text-align: center;}.btn2:after {    content: "";    position: absolute;    left: 0;    top: 0;    height: 490%;    width: 140%;    background: #78c7d2;    -webkit-transition: all .5s ease-in-out;    transition: all .5s ease-in-out;    -webkit-transform: translateX(-98%) translateY(-25%) rotate(45deg);    transform: translateX(-98%) translateY(-25%) rotate(45deg);}.btn2:hover:after {    -webkit-transform: translateX(-9%) translateY(-25%) rotate(45deg);    transform: translateX(-9%) translateY(-25%) rotate(45deg);}