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我遇到了一個CSS幻燈片放映問題，我已經實施到當前的激情項目中，其中沒有默認圖像在加載網頁時顯示。在導航/點按時，圖像被成功顯示，但我似乎無法弄清楚會在頁面加載時顯示第一個圖像的小代碼片段（大概是從Javascript函數中丟失的）。我試圖簡單地將「活動」類添加到所需的圖像，但這隻會使「點」按鈕顯示爲活動狀態，而不顯示相應的圖像。感謝所有幫助Javascript - CSS幻燈片放映不顯示默認圖像
下面的代碼：
var slideIndex = 1;
function plusSlides(n) {
'use strict';
showSlides(slideIndex += n);
}
function currentSlide(n) {
'use strict';
showSlides(slideIndex = n);
}
function showSlides(n) {
'use strict';
var i;
var slides = document.getElementsByClassName("mySlides");
var dots = document.getElementsByClassName("dot");
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";
}* {
box-sizing: border-box
}
body {
font-family: Verdana, sans-serif;
margin: 0
}
.mySlides {
display: none
}
/* Slideshow container */
.slideshow-container {
max-width: 400px;
position: relative;
margin: auto;
}
/* Next & previous buttons */
.prev,
.next {
cursor: pointer;
position: absolute;
top: 50%;
width: auto;
padding: 16px;
margin-top: -22px;
color: white;
font-weight: bold;
font-size: 18px;
transition: 0.6s ease;
border-radius: 0 3px 3px 0;
}
/* Position the "next button" to the right */
.next {
right: 0;
border-radius: 3px 0 0 3px;
}
/* On hover, add see-through background */
.prev:hover,
.next:hover {
background-color: rgba(0, 0, 0, 0.8);
}
/* Caption text */
.text {
color: #f2f2f2;
font-size: 15px;
padding: 8px 12px;
position: absolute;
bottom: 8px;
width: 100%;
text-align: center;
}
/* Number text (1/3 etc) */
.numbertext {
color: #f2f2f2;
font-size: 12px;
padding: 8px 12px;
position: absolute;
top: 0;
}
/* */
.transition {
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,
.transition:hover {
background-color: #222;
}
/* Fading animation */
.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
}
}
/* On smaller screens, decrease text size */
@media only screen and (max-width: 300px) {
.prev,
.next,
.text {
font-size: 11px
}
}<div class="homePage">
<div class="slideshow-container">
<div class="mySlides fade">
<div class="numbertext">1/2</div>
<img src="graphics/logo.jpg" style="width:100%">
<div class="text"></div>
</div>
<div class="mySlides fade">
<div class="numbertext">2/2</div>
<img src="graphics/1.jpg" style="width:100%">
<div class="text"></div>
</div>
<a class="prev" onclick="plusSlides(-1)">❮</a>
<a class="next" onclick="plusSlides(1)">❯</a>
</div>
<br>
<div style="text-align:center">
<span class="transition" onclick="currentSlide(1)"></span>
<span class="transition" onclick="currentSlide(2)"></span>
<br>
</div>
哪裏是css代碼？ –
由於某種原因，我忽視實施它。現在更新 – Jordy