How to put a background in a loader

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How to put a background in a loader

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#1 by (2 votes)

1

I'm designing a loader, which is the following:

var myVar;

function myFunction() {
    myVar = setTimeout(showPage, 1000);
}

function showPage() {
  document.getElementById("loader").style.display = "none";
  document.getElementById("myDiv").style.display = "block";
}

#loader {
  position: absolute;
  left: 50%;
  top: 50%;
  z-index: 1;
  width: 150px;
  height: 150px;
  margin: -75px 0 0 -75px;
  border: 16px solid #f3f3f3;
  border-radius: 50%;
  border-top: 16px solid #3498db;
  width: 120px;
  height: 120px;
  -webkit-animation: spin 2s linear infinite;
  animation: spin 2s linear infinite;
}

@-webkit-keyframes spin {
  0% { -webkit-transform: rotate(0deg); }
  100% { -webkit-transform: rotate(360deg); }
}

@keyframes spin {
  0% { transform: rotate(0deg); }
  100% { transform: rotate(360deg); }
}

/* Add animation to "page content" */
.animate-bottom {
  position: relative;
  -webkit-animation-name: animatebottom;
  -webkit-animation-duration: 1s;
  animation-name: animatebottom;
  animation-duration: 1s
}

@-webkit-keyframes animatebottom {
  from { bottom:-100px; opacity:0 } 
  to { bottom:0px; opacity:1 }
}

@keyframes animatebottom { 
  from{ bottom:-100px; opacity:0 } 
  to{ bottom:0; opacity:1 }
}

#myDiv {
  display: none;
  text-align: center;
}

<script src="https://ajax.googleapis.com/ajax/libs/jquery/1.11.1/jquery.min.js"></script>
<body onload="myFunction()" style="margin:0;">

<div id="loader"></div>

<div style="display:none;" id="myDiv" class="animate-bottom">
  <h2>Tada!</h2>
  <p>Some text in my newly loaded page..</p>
</div>

I just want my loader to appear with a dark background, which is why I tried it with this jquery:

function setTime() {
     $.blockUI({ message: null }); 
setTimeout(showPage, 1000);
setTimeout($.unblockUI, 1000);
}

But the dark background is superimposed on my loader, as seen in the following image:

That's why I ask for your help, I do not know what the problem is and I have not managed to solve it, thank you.

jquery bootstrap

asked by Reinos Ric 07.03.2018 в 22:21

source

1 answer

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score 2 · Accepted Answer

To put a dark background you must put the loader inside a parent div that covers the whole screen. The color of parent div (for this example use # 848484) I put it using the property background-color . When you use your functions do it using the id of the parent div and not the loader.

var myVar;

function myFunction() {
    myVar = setTimeout(showPage, 1000);
}

function showPage() {
  document.getElementById("ParentLoader").style.display = "none";
  document.getElementById("myDiv").style.display = "block";
}

#loader {
  position: absolute;
  left: 50%;
  top: 50%;
  z-index: 1;
  width: 150px;
  height: 150px;
  margin: -75px 0 0 -75px;
  border: 16px solid #f3f3f3;
  border-radius: 50%;
  border-top: 16px solid #3498db;
  width: 120px;
  height: 120px;
  -webkit-animation: spin 2s linear infinite;
  animation: spin 2s linear infinite;
}

@-webkit-keyframes spin {
  0% { -webkit-transform: rotate(0deg); }
  100% { -webkit-transform: rotate(360deg); }
}

@keyframes spin {
  0% { transform: rotate(0deg); }
  100% { transform: rotate(360deg); }
}

/* Add animation to "page content" */
.animate-bottom {
  position: relative;
  -webkit-animation-name: animatebottom;
  -webkit-animation-duration: 1s;
  animation-name: animatebottom;
  animation-duration: 1s
}

@-webkit-keyframes animatebottom {
  from { bottom:-100px; opacity:0 } 
  to { bottom:0px; opacity:1 }
}

@keyframes animatebottom { 
  from{ bottom:-100px; opacity:0 } 
  to{ bottom:0; opacity:1 }
}

#myDiv {
  display: none;
  text-align: center;
}
.loader-parent{
  position:absolute;
  height:100%;
  width:100%;
  background-color:#848484; /*cambia aqui el color que desea que tenag el fondo*/
}

<body onload="myFunction()" style="margin:0;">

<div id="ParentLoader" class="loader-parent">
  <div id="loader"></div>
</div>
<div style="display:none;" id="myDiv" class="animate-bottom">
  <h2>Tada!</h2>
  <p>Some text in my newly loaded page..</p>
</div>