记住用户名密码
效果如下图:
<div class="slideshow-container"> <div class="mySlides fade"> <div class="numbertext">1 / 3</div> <img src="https://c.runoob.com/wp-content/uploads/2017/01/img_mountains_wide.jpg" style="width:100%"> <div class="text">文本 1</div> </div> <div class="mySlides fade"> <div class="numbertext">2 / 3</div> <img src="https://c.runoob.com/wp-content/uploads/2017/01/img_fjords_wide.jpg" style="width:100%"> <div class="text">文本 2</div> </div> <div class="mySlides fade"> <div class="numbertext">3 / 3</div> <img src="https://c.runoob.com/wp-content/uploads/2017/01/img_nature_wide.jpg" style="width:100%"> <div class="text">文本 3</div> </div> </div> <br> <div style="text-align:center"> <span class="dot"></span> <span class="dot"></span> <span class="dot"></span> </div>
* {box-sizing:border-box} body {font-family: Verdana,sans-serif;} .mySlides {display:none} /* 幻灯片容器 */ .slideshow-container { max-width: 1000px; position: relative; margin: auto; } /* 下一张 & 上一张 按钮 */ .prev, .next { cursor: pointer; position: absolute; top: 50%; width: auto; margin-top: -22px; padding: 16px; color: white; font-weight: bold; font-size: 18px; transition: 0.6s ease; border-radius: 0 3px 3px 0; } /* 定位 "下一张" 按钮靠右 */ .next { right: 0; border-radius: 3px 0 0 3px; } /* On hover, add a black background color with a little bit see-through */ .prev:hover, .next:hover { background-color: rgba(0,0,0,0.8); } /* 标题文本 */ .text { color: #f2f2f2; font-size: 15px; padding: 8px 12px; position: absolute; bottom: 8px; width: 100%; text-align: center; } /* 数字文本 (1/3 等) */ .numbertext { color: #f2f2f2; font-size: 12px; padding: 8px 12px; position: absolute; top: 0; } /* 标记符号 */ .dot { cursor:pointer; height: 13px; width: 13px; margin: 0 2px; background-color: #bbb; border-radius: 50%; display: inline-block; transition: background-color 0.6s ease; } .active, .dot:hover { background-color: #717171; } /* 淡出动画 */ .fade { -webkit-animation-name: fade; -webkit-animation-duration: 1.5s; animation-name: fade; animation-duration: 1.5s; } @-webkit-keyframes fade { from {opacity: .4} to {opacity: 1} } @keyframes fade { from {opacity: .4} to {opacity: 1} }
var slideIndex = 0; showSlides(); function showSlides() { var i; var slides = document.getElementsByClassName("mySlides"); var dots = document.getElementsByClassName("dot"); for (i = 0; i < slides.length; i++) { slides[i].style.display = "none"; } slideIndex++; if (slideIndex > slides.length) {slideIndex = 1} for (i = 0; i < dots.length; i++) { dots[i].className = dots[i].className.replace(" active", ""); } slides[slideIndex-1].style.display = "block"; dots[slideIndex-1].className += " active"; setTimeout(showSlides, 2000); // 切换时间为 2 秒 }
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