简单的预加载器HTML / CSS / jQuery无法在iPhone chrome上运行

Question

having a problem with my(i thought) simple preloader. Seems to be working everywhere I checked except for iPhone5 Chrome. preloader appears but never fades out... Thank you for help

HTML:

<div id="preloader">
    <div class="item item-1"></div>
    <div class="item item-2"></div>
    <div class="item item-3"></div>
    <div class="item item-4"></div>
</div>

CSS

#preloader {
  position: fixed;
  left: 50%;
  top: 50%;
  transform: translate(-50%, -50%);
  margin: auto;
  z-index: 999;
  background: red;
  border: solid 3000px white;
}

.item {
  width: 30px;
  height: 30px;
  position: absolute;
  border-radius: 2px;
}

(plus some keyframes not included here)

script:

$(window).on('load', function() {
  $('#preloader').delay(250).fadeOut();
})

Codepen: https://codepen.io/anon/pen/MBJGMM

Answer 1

Мaybe like this:

 window.onload=function(){ setTimeout(function(){ $('#preloader').fadeOut('slow'); }, 250); }; 

 #preloader { position: fixed; left: 50%; top: 50%; transform: translate(-50%, -50%); margin: auto; z-index: 999; background: red; border: solid 3000px white; } .item { width: 30px; height: 30px; position: absolute; border-radius: 2px; } .item-1 { background-color: #46D1E1; top: 0; left: 0; z-index: 1; -webkit-animation: item-1_move 1.2s cubic-bezier(.6,.01,.4,1) infinite; animation: item-1_move 1.2s cubic-bezier(.6,.01,.4,1) infinite; } .item-2 { background-color: #FC487F; top: 0; right: 0; -webkit-animation: item-2_move 1.2s cubic-bezier(.6,.01,.4,1) infinite; animation: item-2_move 1.2s cubic-bezier(.6,.01,.4,1) infinite; } .item-3 { background-color: #885DF1; bottom: 0; right: 0; z-index: 1; -webkit-animation: item-3_move 1.2s cubic-bezier(.6,.01,.4,1) infinite; animation: item-3_move 1.2s cubic-bezier(.6,.01,.4,1) infinite; } .item-4 { background-color: #FDC521; bottom: 0; left: 0; -webkit-animation: item-4_move 1.2s cubic-bezier(.6,.01,.4,1) infinite; animation: item-4_move 1.2s cubic-bezier(.6,.01,.4,1) infinite; } @-webkit-keyframes item-1_move { 0%, 100% {-webkit-transform: translate(0, 0);transform: translate(0, 0)} 25% {-webkit-transform: translate(0, 10px);transform: translate(0, 10px)} 50% {-webkit-transform: translate(10px, 10px);transform: translate(10px, 10px)} 75% {-webkit-transform: translate(10px, 0);transform: translate(10px, 0)} } @keyframes item-1_move { 0%, 100% {-webkit-transform: translate(0, 0);transform: translate(0, 0)} 25% {-webkit-transform: translate(0, 10px);transform: translate(0, 10px)} 50% {-webkit-transform: translate(10px, 10px);transform: translate(10px, 10px)} 75% {-webkit-transform: translate(10px, 0);transform: translate(10px, 0)} } @-webkit-keyframes item-2_move { 0%, 100% {-webkit-transform: translate(0, 0);transform: translate(0, 0)} 25% {-webkit-transform: translate(-10px, 0);transform: translate(-10px, 0)} 50% {-webkit-transform: translate(-10px, 10px);transform: translate(-10px, 10px)} 75% {-webkit-transform: translate(0, 10px);transform: translate(0, 10px)} } @keyframes item-2_move { 0%, 100% {-webkit-transform: translate(0, 0);transform: translate(0, 0)} 25% {-webkit-transform: translate(-10px, 0);transform: translate(-10px, 0)} 50% {-webkit-transform: translate(-10px, 10px);transform: translate(-10px, 10px)} 75% {-webkit-transform: translate(0, 10px);transform: translate(0, 10px)} } @-webkit-keyframes item-3_move { 0%, 100% {-webkit-transform: translate(0, 0);transform: translate(0, 0)} 25% {-webkit-transform: translate(0, -10px);transform: translate(0, -10px)} 50% {-webkit-transform: translate(-10px, -10px);transform: translate(-10px, -10px)} 75% {-webkit-transform: translate(-10px, 0);transform: translate(-100px, 0)} } @keyframes item-3_move { 0%, 100% {-webkit-transform: translate(0, 0);transform: translate(0, 0)} 25% {-webkit-transform: translate(0, -10px);transform: translate(0, -10px)} 50% {-webkit-transform: translate(-10px, -10px);transform: translate(-10px, -10px)} 75% {-webkit-transform: translate(-10px, 0);transform: translate(-10px, 0)} } @-webkit-keyframes item-4_move { 0%, 100% {-webkit-transform: translate(0, 0);transform: translate(0, 0)} 25% {-webkit-transform: translate(10px, 0);transform: translate(10px, 0)} 50% {-webkit-transform: translate(10px, -10px);transform: translate(10px, -10px)} 75% {-webkit-transform: translate(0, -10px);transform: translate(0, -10px)} } @keyframes item-4_move { 0%, 100% {-webkit-transform: translate(0, 0);transform: translate(0, 0)} 25% {-webkit-transform: translate(10px, 0);transform: translate(10px, 0)} 50% {-webkit-transform: translate(10px, -10px);transform: translate(10px, -10px)} 75% {-webkit-transform: translate(0, -10px);transform: translate(0, -10px)} } 

 <script src="https://ajax.googleapis.com/ajax/libs/jquery/1.11.0/jquery.min.js"></script> <div id="preloader"> <div class="item item-1"></div> <div class="item item-2"></div> <div class="item item-3"></div> <div class="item item-4"></div> </div>