jquery - slider 图像不显示在移动设备上

Question

有人可以解释为什么我的 slider 图像没有出现在移动设备上，但在桌面级别上显示正常吗？

演示: https://jsfiddle.net/12dd5j1s/

CSS:

/* http://meyerweb.com/eric/tools/css/reset/ 
   v2.0 | 20110126
   License: none (public domain)
*/

html, body, div, span, applet, object, iframe,
h1, h2, h3, h4, h5, h6, p, blockquote, pre,
a, abbr, acronym, address, big, cite, code,
del, dfn, em, img, ins, kbd, q, s, samp,
small, strike, strong, sub, sup, tt, var,
b, u, i, center,
dl, dt, dd, ol, ul, li,
fieldset, form, label, legend,
table, caption, tbody, tfoot, thead, tr, th, td,
article, aside, canvas, details, embed, 
figure, figcaption, footer, header, hgroup, 
menu, nav, output, ruby, section, summary,
time, mark, audio, video {
    margin: 0;
    padding: 0;
    border: 0;
    font-size: 100%;
    font: inherit;
    vertical-align: baseline;
}
/* HTML5 display-role reset for older browsers */
article, aside, details, figcaption, figure, 
footer, header, hgroup, menu, nav, section, main {
    display: block;
}
body {
    line-height: 1;
}
ol, ul {
    list-style: none;
}
blockquote, q {
    quotes: none;
}
blockquote:before, blockquote:after,
q:before, q:after {
    content: '';
    content: none;
}
table {
    border-collapse: collapse;
    border-spacing: 0;
}






/* -------------------------------- 

Primary style

-------------------------------- */
*, *::after, *::before {
  -webkit-box-sizing: border-box;
  -moz-box-sizing: border-box;
  box-sizing: border-box;
}

html {
  font-size: 62.5%;
}

body {
  font-size: 1.6rem;
  font-family: "Open Sans", sans-serif;
  color: #2c343b;
  background-color: #f2f2f2;
}

a {
  color: #d44457;
  text-decoration: none;
}

img {
  max-width: 130%;
}

/* -------------------------------- 

Main Components 

-------------------------------- */
.cd-header {
  position: absolute;
  z-index: 2;
  top: 0;
  left: 0;
  width: 100%;
  height: 50px;
  background-color: #21272c;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}
@media only screen and (min-width: 768px) {
  .cd-header {
    height: 70px;
    background-color: transparent;
  }
}

#cd-logo {
  float: left;
  margin: 13px 0 0 5%;
}
#cd-logo img {
  display: block;
}
@media only screen and (min-width: 300px) {
  #cd-logo {
    margin: 23px 0 0 5%;
  }
}

.cd-primary-nav {
  /* mobile first - navigation hidden by default, triggered by tap/click on navigation icon */
  float: right;
  margin-right: 5%;
  width: 44px;
  height: 100%;
  background: url("../assets/cd-icon-menu.svg") no-repeat center center;
}
.cd-primary-nav ul {
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  -webkit-transform: translateY(-100%);
  -moz-transform: translateY(-100%);
  -ms-transform: translateY(-100%);
  -o-transform: translateY(-100%);
  transform: translateY(-100%);
}
.cd-primary-nav ul.is-visible {
  box-shadow: 0 3px 8px rgba(0, 0, 0, 0.2);
  -webkit-transform: translateY(50px);
  -moz-transform: translateY(50px);
  -ms-transform: translateY(50px);
  -o-transform: translateY(50px);
  transform: translateY(50px);
}
.cd-primary-nav a {
  display: block;
  height: 50px;
  line-height: 50px;
  padding-left: 5%;
  background: #21272c;
  border-top: 1px solid #333c44;
  color: #ffffff;
}
@media only screen and (min-width: 768px) {
  .cd-primary-nav {
    /* reset navigation values */
    width: auto;
    height: auto;
    background: none;
  }
  .cd-primary-nav ul {
    position: static;
    width: auto;
    -webkit-transform: translateY(0);
    -moz-transform: translateY(0);
    -ms-transform: translateY(0);
    -o-transform: translateY(0);
    transform: translateY(0);
    line-height: 70px;
  }
  .cd-primary-nav ul.is-visible {
    -webkit-transform: translateY(0);
    -moz-transform: translateY(0);
    -ms-transform: translateY(0);
    -o-transform: translateY(0);
    transform: translateY(0);
  }
  .cd-primary-nav li {
    display: inline-block;
    margin-left: 1em;
  }
  .cd-primary-nav a {
    display: inline-block;
    height: auto;
    font-weight: 600;
    line-height: normal;
    background: transparent;
    padding: .6em 1em;
    border-top: none;
  }
}

/* -------------------------------- 

Slider

-------------------------------- */
.cd-hero {
  position: relative;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

.cd-hero-slider {
  position: relative;
  height: 360px;
  overflow: hidden;
}
.cd-hero-slider li {
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  -webkit-transform: translateX(100%);
  -moz-transform: translateX(100%);
  -ms-transform: translateX(100%);
  -o-transform: translateX(100%);
  transform: translateX(100%);
}
.cd-hero-slider li.selected {
  /* this is the visible slide */
  position: relative;
  -webkit-transform: translateX(0);
  -moz-transform: translateX(0);
  -ms-transform: translateX(0);
  -o-transform: translateX(0);
  transform: translateX(0);
}
.cd-hero-slider li.move-left {
  /* slide hidden on the left */
  -webkit-transform: translateX(-100%);
  -moz-transform: translateX(-100%);
  -ms-transform: translateX(-100%);
  -o-transform: translateX(-100%);
  transform: translateX(-100%);
}
.cd-hero-slider li.is-moving, .cd-hero-slider li.selected {
  /* the is-moving class is assigned to the slide which is moving outside the viewport */
  -webkit-transition: -webkit-transform 0.5s;
  -moz-transition: -moz-transform 0.5s;
  transition: transform 0.5s;
}
@media only screen and (min-width: 768px) {
  .cd-hero-slider {
    height: 500px;
  }
}
@media only screen and (min-width: 1170px) {
  .cd-hero-slider {
    height: 680px;
  }
}

/* -------------------------------- 

Single slide style

-------------------------------- */
.cd-hero-slider li {
  background-position: center center;
  background-size: cover;
  background-repeat: no-repeat;
    background-image: url(../assets/oneback2.jpg);
}
.cd-hero-slider li:first-of-type {
  background-color: #2c343b;
}
.cd-hero-slider li:nth-of-type(2) {
  background-color: #3d4952;
}
.cd-hero-slider li:nth-of-type(3) {
  background-color: #5f2322;
}
.cd-hero-slider li:nth-of-type(4) {
  background-color: #05132f;
}
.cd-hero-slider li:nth-of-type(5) {
  background-color: #2c343b;
}
.cd-hero-slider .cd-full-width,
.cd-hero-slider .cd-half-width {
  position: absolute;
  width: 100%;
  height: 100%;
  z-index: 1;
  left: 0;
  top: 0;
  /* this padding is used to align the text */
  padding-top: 100px;
  text-align: center;
  /* Force Hardware Acceleration in WebKit */
  -webkit-backface-visibility: hidden;
  backface-visibility: hidden;
  -webkit-transform: translateZ(0);
  -moz-transform: translateZ(0);
  -ms-transform: translateZ(0);
  -o-transform: translateZ(0);
  transform: translateZ(0);
}
.cd-hero-slider .cd-img-container {
  /* hide image on mobile device */
  display: none;
}
.cd-hero-slider .cd-img-container img {
  position: inherit;
  left: 100%;
  top: 50%;
  bottom: auto;
  right: auto;
  -webkit-transform: translateX(-50%) translateY(-50%);
  -moz-transform: translateX(-50%) translateY(-50%);
  -ms-transform: translateX(-50%) translateY(-50%);
  -o-transform: translateX(-50%) translateY(-50%);
  transform: translateX(-50%) translateY(-50%);
}
.cd-hero-slider .cd-bg-video-wrapper {
  /* hide video on mobile device */
  display: none;
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  overflow: hidden;
}
.cd-hero-slider .cd-bg-video-wrapper video {
  /* you won't see this element in the html, but it will be injected using js */
  display: block;
  min-height: 100%;
  min-width: 100%;
  max-width: none;
  height: auto;
  width: auto;
  position: absolute;
  left: 50%;
  top: 50%;
  bottom: auto;
  right: auto;
  -webkit-transform: translateX(-50%) translateY(-50%);
  -moz-transform: translateX(-50%) translateY(-50%);
  -ms-transform: translateX(-50%) translateY(-50%);
  -o-transform: translateX(-50%) translateY(-50%);
  transform: translateX(-50%) translateY(-50%);
}
.cd-hero-slider h2, .cd-hero-slider p {
  text-shadow: 0 1px 3px rgba(0, 0, 0, 0.1);
  line-height: 1.2;
  margin: 0 auto 14px;
  color: #ffffff;
  width: 90%;
  max-width: 400px;
}
.cd-hero-slider h2 {
  font-size: 2.4rem;
}
.cd-hero-slider p {
  font-size: 1.4rem;
  line-height: 1.4;
}
.cd-hero-slider .cd-btn {
  display: inline-block;
  padding: 1.2em 1.4em;
  margin-top: .8em;
  background-color: rgba(212, 68, 87, 0.9);
  font-size: 1.3rem;
  font-weight: 700;
  letter-spacing: 1px;
  color: #ffffff;
  text-transform: uppercase;
  box-shadow: 0 3px 6px rgba(0, 0, 0, 0.1);
  -webkit-transition: background-color 0.2s;
  -moz-transition: background-color 0.2s;
  transition: background-color 0.2s;
}
.cd-hero-slider .cd-btn.secondary {
  background-color: rgba(22, 26, 30, 0.8);
}
.cd-hero-slider .cd-btn:nth-of-type(2) {
  margin-left: 1em;
}
.no-touch .cd-hero-slider .cd-btn:hover {
  background-color: #d44457;
}
.no-touch .cd-hero-slider .cd-btn.secondary:hover {
  background-color: #161a1e;
}
@media only screen and (min-width: 768px) {
  .cd-hero-slider li:nth-of-type(2) {
    background-image: none;
  }
  .cd-hero-slider li:nth-of-type(3) {
    background-image: none;
  }
  .cd-hero-slider li:nth-of-type(4) {
    background-image: none;
  }
  .cd-hero-slider .cd-full-width,
  .cd-hero-slider .cd-half-width {
    padding-top: 150px;
  }
  .cd-hero-slider .cd-bg-video-wrapper {
    display: block;
  }
  .cd-hero-slider .cd-half-width {
    width: 45%;
  }
  .cd-hero-slider .cd-half-width:first-of-type {
    left: 5%;
  }
  .cd-hero-slider .cd-half-width:nth-of-type(2) {
    right: 5%;
    left: auto;
  }
  .cd-hero-slider .cd-img-container {
    display: block;
  }
  .cd-hero-slider h2, .cd-hero-slider p {
    max-width: 520px;
  }
  .cd-hero-slider h2 {
    font-size: 2.4em;
    font-weight: 300;
  }
  .cd-hero-slider .cd-btn {
    font-size: 1.4rem;
  }
}
@media only screen and (min-width: 1170px) {
  .cd-hero-slider .cd-full-width,
  .cd-hero-slider .cd-half-width {
    padding-top: 220px;
  }
  .cd-hero-slider h2, .cd-hero-slider p {
    margin-bottom: 20px;
  }
  .cd-hero-slider h2 {
    font-size: 3.2em;
  }
  .cd-hero-slider p {
    font-size: 1.6rem;
  }
}

/* -------------------------------- 

Single slide animation

-------------------------------- */
@media only screen and (min-width: 768px) {
  .cd-hero-slider .cd-half-width {
    opacity: 0;
    -webkit-transform: translateX(40px);
    -moz-transform: translateX(40px);
    -ms-transform: translateX(40px);
    -o-transform: translateX(40px);
    transform: translateX(40px);
  }
  .cd-hero-slider .move-left .cd-half-width {
    -webkit-transform: translateX(-40px);
    -moz-transform: translateX(-40px);
    -ms-transform: translateX(-40px);
    -o-transform: translateX(-40px);
    transform: translateX(-40px);
  }
  .cd-hero-slider .selected .cd-half-width {
    /* this is the visible slide */
    opacity: 1;
    -webkit-transform: translateX(0);
    -moz-transform: translateX(0);
    -ms-transform: translateX(0);
    -o-transform: translateX(0);
    transform: translateX(0);
  }
  .cd-hero-slider .is-moving .cd-half-width {
    /* this is the slide moving outside the viewport 
    wait for the end of the transition on the <li> parent before set opacity to 0 and translate to 40px/-40px */
    -webkit-transition: opacity 0s 0.5s, -webkit-transform 0s 0.5s;
    -moz-transition: opacity 0s 0.5s, -moz-transform 0s 0.5s;
    transition: opacity 0s 0.5s, transform 0s 0.5s;
  }
  .cd-hero-slider li.selected.from-left .cd-half-width:nth-of-type(2),
  .cd-hero-slider li.selected.from-right .cd-half-width:first-of-type {
    /* this is the selected slide - different animation if it's entering from left or right */
    -webkit-transition: opacity 0.4s 0.2s, -webkit-transform 0.5s 0.2s;
    -moz-transition: opacity 0.4s 0.2s, -moz-transform 0.5s 0.2s;
    transition: opacity 0.4s 0.2s, transform 0.5s 0.2s;
  }
  .cd-hero-slider li.selected.from-left .cd-half-width:first-of-type,
  .cd-hero-slider li.selected.from-right .cd-half-width:nth-of-type(2) {
    /* this is the selected slide - different animation if it's entering from left or right */
    -webkit-transition: opacity 0.4s 0.4s, -webkit-transform 0.5s 0.4s;
    -moz-transition: opacity 0.4s 0.4s, -moz-transform 0.5s 0.4s;
    transition: opacity 0.4s 0.4s, transform 0.5s 0.4s;
  }
  .cd-hero-slider .cd-full-width h2,
  .cd-hero-slider .cd-full-width p,
  .cd-hero-slider .cd-full-width .cd-btn {
    opacity: 0;
    -webkit-transform: translateX(100px);
    -moz-transform: translateX(100px);
    -ms-transform: translateX(100px);
    -o-transform: translateX(100px);
    transform: translateX(100px);
  }
  .cd-hero-slider .move-left .cd-full-width h2,
  .cd-hero-slider .move-left .cd-full-width p,
  .cd-hero-slider .move-left .cd-full-width .cd-btn {
    opacity: 0;
    -webkit-transform: translateX(-100px);
    -moz-transform: translateX(-100px);
    -ms-transform: translateX(-100px);
    -o-transform: translateX(-100px);
    transform: translateX(-100px);
  }
  .cd-hero-slider .selected .cd-full-width h2,
  .cd-hero-slider .selected .cd-full-width p,
  .cd-hero-slider .selected .cd-full-width .cd-btn {
    /* this is the visible slide */
    opacity: 1;
    -webkit-transform: translateX(0);
    -moz-transform: translateX(0);
    -ms-transform: translateX(0);
    -o-transform: translateX(0);
    transform: translateX(0);
  }
  .cd-hero-slider li.is-moving .cd-full-width h2,
  .cd-hero-slider li.is-moving .cd-full-width p,
  .cd-hero-slider li.is-moving .cd-full-width .cd-btn {
    /* this is the slide moving outside the viewport 
    wait for the end of the transition on the li parent before set opacity to 0 and translate to 100px/-100px */
    -webkit-transition: opacity 0s 0.5s, -webkit-transform 0s 0.5s;
    -moz-transition: opacity 0s 0.5s, -moz-transform 0s 0.5s;
    transition: opacity 0s 0.5s, transform 0s 0.5s;
  }
  .cd-hero-slider li.selected h2 {
    -webkit-transition: opacity 0.4s 0.2s, -webkit-transform 0.5s 0.2s;
    -moz-transition: opacity 0.4s 0.2s, -moz-transform 0.5s 0.2s;
    transition: opacity 0.4s 0.2s, transform 0.5s 0.2s;
  }
  .cd-hero-slider li.selected p {
    -webkit-transition: opacity 0.4s 0.3s, -webkit-transform 0.5s 0.3s;
    -moz-transition: opacity 0.4s 0.3s, -moz-transform 0.5s 0.3s;
    transition: opacity 0.4s 0.3s, transform 0.5s 0.3s;
  }
  .cd-hero-slider li.selected .cd-btn {
    -webkit-transition: opacity 0.4s 0.4s, -webkit-transform 0.5s 0.4s, background-color 0.2s 0s;
    -moz-transition: opacity 0.4s 0.4s, -moz-transform 0.5s 0.4s, background-color 0.2s 0s;
    transition: opacity 0.4s 0.4s, transform 0.5s 0.4s, background-color 0.2s 0s;
  }
}
/* -------------------------------- 

Slider navigation

-------------------------------- */
.cd-slider-nav {
  position: absolute;
  width: 100%;
  bottom: 0;
  z-index: 2;
  text-align: center;
  height: 55px;
  background-color: rgba(0, 1, 1, 0.5);
}
.cd-slider-nav nav, .cd-slider-nav ul, .cd-slider-nav li, .cd-slider-nav a {
  height: 100%;
}
.cd-slider-nav nav {
  display: inline-block;
  position: relative;
}
.cd-slider-nav .cd-marker {
  position: absolute;
  bottom: 0;
  left: 0;
  width: 60px;
  height: 100%;
  color: #d44457;
  background-color: #ffffff;
  box-shadow: inset 0 2px 0 currentColor;
  -webkit-transition: -webkit-transform 0.2s, box-shadow 0.2s;
  -moz-transition: -moz-transform 0.2s, box-shadow 0.2s;
  transition: transform 0.2s, box-shadow 0.2s;
}
.cd-slider-nav .cd-marker.item-2 {
  -webkit-transform: translateX(100%);
  -moz-transform: translateX(100%);
  -ms-transform: translateX(100%);
  -o-transform: translateX(100%);
  transform: translateX(100%);
}
.cd-slider-nav .cd-marker.item-3 {
  -webkit-transform: translateX(200%);
  -moz-transform: translateX(200%);
  -ms-transform: translateX(200%);
  -o-transform: translateX(200%);
  transform: translateX(200%);
}
.cd-slider-nav .cd-marker.item-4 {
  -webkit-transform: translateX(300%);
  -moz-transform: translateX(300%);
  -ms-transform: translateX(300%);
  -o-transform: translateX(300%);
  transform: translateX(300%);
}
.cd-slider-nav .cd-marker.item-5 {
  -webkit-transform: translateX(400%);
  -moz-transform: translateX(400%);
  -ms-transform: translateX(400%);
  -o-transform: translateX(400%);
  transform: translateX(400%);
}
.cd-slider-nav ul::after {
  clear: both;
  content: "";
  display: table;
}
.cd-slider-nav li {
  display: inline-block;
  width: 60px;
  float: left;
}
.cd-slider-nav li.selected a {
  color: #2c343b;
}
.no-touch .cd-slider-nav li.selected a:hover {
  background-color: transparent;
}
.cd-slider-nav a {
  display: block;
  position: relative;
  padding-top: 35px;
  font-size: 1rem;
  font-weight: 700;
  color: #a8b4be;
  -webkit-transition: background-color 0.2s;
  -moz-transition: background-color 0.2s;
  transition: background-color 0.2s;
}
.cd-slider-nav a::before {
  content: '';
  position: absolute;
  width: 24px;
  height: 24px;
  top: 8px;
  left: 50%;
  right: auto;
  -webkit-transform: translateX(-50%);
  -moz-transform: translateX(-50%);
  -ms-transform: translateX(-50%);
  -o-transform: translateX(-50%);
  transform: translateX(-50%);
  background: url(../assets/cd-icon-navigation.svg) no-repeat 0 0;
}
.no-touch .cd-slider-nav a:hover {
  background-color: rgba(0, 1, 1, 0.5);
}
.cd-slider-nav li:first-of-type a::before {
  background-position: 0 0;
}
.cd-slider-nav li.selected:first-of-type a::before {
  background-position: 0 -24px;
}
.cd-slider-nav li:nth-of-type(2) a::before {
  background-position: -24px 0;
}
.cd-slider-nav li.selected:nth-of-type(2) a::before {
  background-position: -24px -24px;
}
.cd-slider-nav li:nth-of-type(3) a::before {
  background-position: -48px 0;
}
.cd-slider-nav li.selected:nth-of-type(3) a::before {
  background-position: -48px -24px;
}
.cd-slider-nav li:nth-of-type(4) a::before {
  background-position: -72px 0;
}
.cd-slider-nav li.selected:nth-of-type(4) a::before {
  background-position: -72px -24px;
}
.cd-slider-nav li:nth-of-type(5) a::before {
  background-position: -96px 0;
}
.cd-slider-nav li.selected:nth-of-type(5) a::before {
  background-position: -96px -24px;
}
@media only screen and (min-width: 768px) {
  .cd-slider-nav {
    height: 80px;
  }
  .cd-slider-nav .cd-marker,
  .cd-slider-nav li {
    width: 95px;
  }
  .cd-slider-nav a {
    padding-top: 48px;
    font-size: 1.1rem;
    text-transform: uppercase;
  }
  .cd-slider-nav a::before {
    top: 18px;
  }
}

/* -------------------------------- 

Main content

-------------------------------- */
.cd-main-content {
  width: 90%;
  max-width: 768px;
  margin: 0 auto;
  padding: 2em 0;
}
.cd-main-content p {
  font-size: 1.4rem;
  line-height: 1.8;
  color: #999999;
  margin: 2em 0;
}
@media only screen and (min-width: 1170px) {
  .cd-main-content {
    padding: 3em 0;
  }
  .cd-main-content p {
    font-size: 1.6rem;
  }
}

/* -------------------------------- 

Javascript disabled

-------------------------------- */
.no-js .cd-hero-slider li {
  display: none;
}
.no-js .cd-hero-slider li.selected {
  display: block;
}

.no-js .cd-slider-nav {
  display: none;
}

Answer 1

你在 .cd-hero-slider .cd-img-container 上有 display:none

你甚至有评论告诉你

.cd-hero-slider .cd-img-container {
  /* hide image on mobile device */
  display: none;
}