html - 调整图像大小
问题描述
目前图像幻灯片覆盖了整个屏幕。我希望图像仅覆盖屏幕的 50%,并且我希望图像居中,垂直和水平。另外,我想超链接图像,以便当用户单击图像时,图像将出现在新选项卡中。
<!DOCTYPE html>
<html>
<meta name="viewport" content="width=device-width, initial-scale=1">
<style>
body {
font-family: Arial;
margin: 0;
}
* {
box-sizing: border-box;
}
img {
vertical-align: middle;
}
/* Position the image container (needed to position the left and right arrows) */
.container {
position: relative;
}
/* Hide the images by default */
.mySlides {
display: none;
}
/* Add a pointer when hovering over the thumbnail images */
.cursor {
cursor: pointer;
}
/* Next & previous buttons */
.prev,
.next {
cursor: pointer;
position: absolute;
top: 40%;
width: auto;
padding: 16px;
margin-top: -50px;
color: white;
font-weight: bold;
font-size: 20px;
border-radius: 0 3px 3px 0;
user-select: none;
-webkit-user-select: none;
}
/* Position the "next button" to the right */
.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);
}
/* Number text (1/3 etc) */
.numbertext {
color: #f2f2f2;
font-size: 12px;
padding: 8px 12px;
position: absolute;
top: 0;
}
.active,
.demo:hover {
opacity: 1;
}
</style>
<body>
<div class="container">
<div class="mySlides">
<div class="numbertext">1 / 6</div>
<img src="001.jpg" style="width:100%">
</div>
<div class="mySlides">
<div class="numbertext">2 / 6</div>
<img src="002.jpg" style="width:100%">
</div>
<div class="mySlides">
<div class="numbertext">3 / 6</div>
<img src="003.jpg" style="width:100%">
</div>
<div class="mySlides">
<div class="numbertext">4 / 6</div>
<img src="004.jpg style="width:100%">
</div>
<div class="mySlides">
<div class="numbertext">5 / 6</div>
<img src="005.jpg" style="width:100%">
</div>
<div class="mySlides">
<div class="numbertext">6 / 6</div>
<img src="006.jpg" style="width:100%">
</div>
<a class="prev" onclick="plusSlides(-1)">❮</a>
<a class="next" onclick="plusSlides(1)">❯</a>
<script>
var slideIndex = 1;
showSlides(slideIndex);
function plusSlides(n) {
showSlides(slideIndex += n);
}
function currentSlide(n) {
showSlides(slideIndex = n);
}
function showSlides(n) {
var i;
var slides = document.getElementsByClassName("mySlides");
var dots = document.getElementsByClassName("demo");
var captionText = document.getElementById("caption");
if (n > slides.length) {slideIndex = 1}
if (n < 1) {slideIndex = slides.length}
for (i = 0; i < slides.length; i++) {
slides[i].style.display = "none";
}
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";
captionText.innerHTML = dots[slideIndex-1].alt;
}
</script>
</body>
</html>
解决方案
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