我试图在用户执行特定操作后显示加载区域。我想在屏幕中央显示加载动画,同时在后台将页面的其余部分显示为灰色。
此时,我的问题是加载动画也变灰了,我只想将背景变灰。白框应该是不透明的,但也有点透明。有帮助吗?
$('input[type=button]').click(function() {
$("#shader").fadeIn();
});.loadingContainer {
width: 50%;
height: 50%;
overflow: auto;
margin: auto;
position: absolute;
top: 0;
left: 0;
bottom: 0;
right: 0;
}
.shader {
width: 100%;
height: 100%;
background-color: black;
top: 0;
bottom: 0;
right: 0;
left: 0;
position: fixed;
opacity: 0.5;
display: none;
}
#divLoading3 {
border-radius: 40px;
margin: auto;
overflow: hidden;
width: 100%;
height: 100%;
background-color: white;
}
#loader-wrapper {
position: fixed;
top: 0;
left: 0;
width: 100%;
height: 100%;
z-index: 1000;
}
#loader {
display: block;
position: relative;
left: 50%;
top: 50%;
width: 150px;
height: 150px;
margin: -75px 0 0 -75px;
border-radius: 50%;
border: 3px solid transparent;
border-top-color: #3498db;
-webkit-animation: spin 2s linear infinite;
animation: spin 2s linear infinite;
}
#loader:before {
content:"";
position: absolute;
top: 5px;
left: 5px;
right: 5px;
bottom: 5px;
border-radius: 50%;
border: 3px solid transparent;
border-top-color: #e74c3c;
-webkit-animation: spin 3s linear infinite;
animation: spin 3s linear infinite;
}
#loader:after {
content:"";
position: absolute;
top: 15px;
left: 15px;
right: 15px;
bottom: 15px;
border-radius: 50%;
border: 3px solid transparent;
border-top-color: #f9c922;
-webkit-animation: spin 1.5s linear infinite;
animation: spin 1.5s linear infinite;
}
@-webkit-keyframes spin {
0% {
-webkit-transform: rotate(0deg);
-ms-transform: rotate(0deg);
transform: rotate(0deg);
}
100% {
-webkit-transform: rotate(360deg);
-ms-transform: rotate(360deg);
transform: rotate(360deg);
}
}
@keyframes spin {
0% {
-webkit-transform: rotate(0deg);
-ms-transform: rotate(0deg);
transform: rotate(0deg);
}
100% {
-webkit-transform: rotate(360deg);
-ms-transform: rotate(360deg);
transform: rotate(360deg);
}
}<script src="https://ajax.googleapis.com/ajax/libs/jquery/2.1.1/jquery.min.js"></script>
<input type="button" value="load button">
<p>background contents background contents background contents</p>
<p>background contents background contents background contents</p>
<p>background contents background contents background contents</p>
<p>background contents background contents background contents</p>
<p>background contents background contents background contents</p>
<p>background contents background contents background contents</p>
<p>background contents background contents background contents</p>
<p>background contents background contents background contents</p>
<p>background contents background contents background contents</p>
<p>background contents background contents background contents</p>
<p>background contents background contents background contents</p>
<p>background contents background contents background contents</p>
<div id="shader" class="shader">
<div class="loadingContainer">
<div id="divLoading3">
<div id="loader-wrapper">
<div id="loader"></div>
</div>
</div>
</div>
</div>
查看整页以获得更好的 View
最佳答案
使用 rgb 背景 background-color: rgba(0, 0, 0, 0.65); 不透明度
你已经添加了opacity所以 children 也会inherit它
演示 - http://jsfiddle.net/kw7302rb/
.shader {
width: 100%;
height: 100%;
background-color: black; /** change it to this background-color: rgba(0, 0, 0, 0.65) **/
top: 0;
bottom: 0;
right: 0;
left: 0;
position: fixed;
opacity: 0.5; /** you can remove this **/
display: none;
}
$('input[type=button]').click(function() {
$("#shader").fadeIn();
});.loadingContainer {
width: 50%;
height: 50%;
overflow: auto;
margin: auto;
position: absolute;
top: 0;
left: 0;
bottom: 0;
right: 0;
}
.shader {
width: 100%;
height: 100%;
background-color: rgba(0, 0, 0, 0.65);
top: 0;
bottom: 0;
right: 0;
left: 0;
position: fixed;
display: none;
}
#divLoading3 {
border-radius: 40px;
margin: auto;
overflow: hidden;
width: 100%;
height: 100%;
background-color: white;
}
#loader-wrapper {
position: fixed;
top: 0;
left: 0;
width: 100%;
height: 100%;
z-index: 1000;
}
#loader {
display: block;
position: relative;
left: 50%;
top: 50%;
width: 150px;
height: 150px;
margin: -75px 0 0 -75px;
border-radius: 50%;
border: 3px solid transparent;
border-top-color: #3498db;
-webkit-animation: spin 2s linear infinite;
animation: spin 2s linear infinite;
}
#loader:before {
content:"";
position: absolute;
top: 5px;
left: 5px;
right: 5px;
bottom: 5px;
border-radius: 50%;
border: 3px solid transparent;
border-top-color: #e74c3c;
-webkit-animation: spin 3s linear infinite;
animation: spin 3s linear infinite;
}
#loader:after {
content:"";
position: absolute;
top: 15px;
left: 15px;
right: 15px;
bottom: 15px;
border-radius: 50%;
border: 3px solid transparent;
border-top-color: #f9c922;
-webkit-animation: spin 1.5s linear infinite;
animation: spin 1.5s linear infinite;
}
@-webkit-keyframes spin {
0% {
-webkit-transform: rotate(0deg);
-ms-transform: rotate(0deg);
transform: rotate(0deg);
}
100% {
-webkit-transform: rotate(360deg);
-ms-transform: rotate(360deg);
transform: rotate(360deg);
}
}
@keyframes spin {
0% {
-webkit-transform: rotate(0deg);
-ms-transform: rotate(0deg);
transform: rotate(0deg);
}
100% {
-webkit-transform: rotate(360deg);
-ms-transform: rotate(360deg);
transform: rotate(360deg);
}
}<script src="https://ajax.googleapis.com/ajax/libs/jquery/2.1.1/jquery.min.js"></script>
<input type="button" value="load button">
<p>background contents background contents background contents</p>
<p>background contents background contents background contents</p>
<p>background contents background contents background contents</p>
<p>background contents background contents background contents</p>
<p>background contents background contents background contents</p>
<p>background contents background contents background contents</p>
<p>background contents background contents background contents</p>
<p>background contents background contents background contents</p>
<p>background contents background contents background contents</p>
<p>background contents background contents background contents</p>
<p>background contents background contents background contents</p>
<p>background contents background contents background contents</p>
<div id="shader" class="shader">
<div class="loadingContainer">
<div id="divLoading3">
<div id="loader-wrapper">
<div id="loader"></div>
</div>
</div>
</div>
</div>
或者类似的东西
$('input[type=button]').click(function() {
$("#shader").fadeIn();
});.loadingContainer {
width: 50%;
height: 50%;
overflow: auto;
margin: auto;
position: absolute;
top: 0;
left: 0;
bottom: 0;
right: 0;
}
.shader {
width: 100%;
height: 100%;
background-color: rgba(0, 0, 0, 0.65);
top: 0;
bottom: 0;
right: 0;
left: 0;
position: fixed;
display: none;
}
#divLoading3 {
border-radius: 40px;
margin: auto;
overflow: hidden;
width: 100%;
height: 100%;
background-color: rgba(255, 255, 255, 0.65);
}
#loader-wrapper {
position: fixed;
top: 0;
left: 0;
width: 100%;
height: 100%;
z-index: 1000;
}
#loader {
display: block;
position: relative;
left: 50%;
top: 50%;
width: 150px;
height: 150px;
margin: -75px 0 0 -75px;
border-radius: 50%;
border: 3px solid transparent;
border-top-color: #3498db;
-webkit-animation: spin 2s linear infinite;
animation: spin 2s linear infinite;
}
#loader:before {
content:"";
position: absolute;
top: 5px;
left: 5px;
right: 5px;
bottom: 5px;
border-radius: 50%;
border: 3px solid transparent;
border-top-color: #e74c3c;
-webkit-animation: spin 3s linear infinite;
animation: spin 3s linear infinite;
}
#loader:after {
content:"";
position: absolute;
top: 15px;
left: 15px;
right: 15px;
bottom: 15px;
border-radius: 50%;
border: 3px solid transparent;
border-top-color: #f9c922;
-webkit-animation: spin 1.5s linear infinite;
animation: spin 1.5s linear infinite;
}
@-webkit-keyframes spin {
0% {
-webkit-transform: rotate(0deg);
-ms-transform: rotate(0deg);
transform: rotate(0deg);
}
100% {
-webkit-transform: rotate(360deg);
-ms-transform: rotate(360deg);
transform: rotate(360deg);
}
}
@keyframes spin {
0% {
-webkit-transform: rotate(0deg);
-ms-transform: rotate(0deg);
transform: rotate(0deg);
}
100% {
-webkit-transform: rotate(360deg);
-ms-transform: rotate(360deg);
transform: rotate(360deg);
}
}<script src="https://ajax.googleapis.com/ajax/libs/jquery/2.1.1/jquery.min.js"></script>
<input type="button" value="load button">
<p>background contents background contents background contents</p>
<p>background contents background contents background contents</p>
<p>background contents background contents background contents</p>
<p>background contents background contents background contents</p>
<p>background contents background contents background contents</p>
<p>background contents background contents background contents</p>
<p>background contents background contents background contents</p>
<p>background contents background contents background contents</p>
<p>background contents background contents background contents</p>
<p>background contents background contents background contents</p>
<p>background contents background contents background contents</p>
<p>background contents background contents background contents</p>
<div id="shader" class="shader">
<div class="loadingContainer">
<div id="divLoading3">
<div id="loader-wrapper">
<div id="loader"></div>
</div>
</div>
</div>
</div>
另一个解决方案是你可以添加一个额外的 div 和 opacity
html
<div id="shader" class="shader">
<div class="overlay"></div> <!-- new div added which will act as greyed background -->
<div class="loadingContainer">
<div id="divLoading3">
<div id="loader-wrapper">
<div id="loader"></div>
</div>
</div>
</div>
</div>
CSS
.overlay {
background-color: black;
top: 0;
bottom: 0;
right: 0;
left: 0;
opacity:.5;
position: fixed;
}
演示 - http://jsfiddle.net/kw7302rb/3/
$('input[type=button]').click(function () {
$("#shader").fadeIn();
});.loadingContainer {
width: 50%;
height: 50%;
overflow: auto;
margin: auto;
position: absolute;
top: 0;
left: 0;
bottom: 0;
right: 0;
}
.shader {
width: 100%;
height: 100%;
top: 0;
bottom: 0;
right: 0;
left: 0;
position: fixed;
display: none;
}
.overlay {
background-color: black;
top: 0;
bottom: 0;
right: 0;
left: 0;
opacity:.5;
position: fixed;
}
#divLoading3 {
border-radius: 40px;
margin: auto;
overflow: hidden;
width: 100%;
height: 100%;
background-color: white;
}
#loader-wrapper {
position: fixed;
top: 0;
left: 0;
width: 100%;
height: 100%;
z-index: 1000;
}
#loader {
display: block;
position: relative;
left: 50%;
top: 50%;
width: 150px;
height: 150px;
margin: -75px 0 0 -75px;
border-radius: 50%;
border: 3px solid transparent;
border-top-color: #3498db;
-webkit-animation: spin 2s linear infinite;
animation: spin 2s linear infinite;
}
#loader:before {
content:"";
position: absolute;
top: 5px;
left: 5px;
right: 5px;
bottom: 5px;
border-radius: 50%;
border: 3px solid transparent;
border-top-color: #e74c3c;
-webkit-animation: spin 3s linear infinite;
animation: spin 3s linear infinite;
}
#loader:after {
content:"";
position: absolute;
top: 15px;
left: 15px;
right: 15px;
bottom: 15px;
border-radius: 50%;
border: 3px solid transparent;
border-top-color: #f9c922;
-webkit-animation: spin 1.5s linear infinite;
animation: spin 1.5s linear infinite;
}
@-webkit-keyframes spin {
0% {
-webkit-transform: rotate(0deg);
-ms-transform: rotate(0deg);
transform: rotate(0deg);
}
100% {
-webkit-transform: rotate(360deg);
-ms-transform: rotate(360deg);
transform: rotate(360deg);
}
}
@keyframes spin {
0% {
-webkit-transform: rotate(0deg);
-ms-transform: rotate(0deg);
transform: rotate(0deg);
}
100% {
-webkit-transform: rotate(360deg);
-ms-transform: rotate(360deg);
transform: rotate(360deg);
}
}<script src="https://ajax.googleapis.com/ajax/libs/jquery/1.11.1/jquery.min.js"></script>
<input type="button" value="load button">
<p>background contents background contents background contents</p>
<p>background contents background contents background contents</p>
<p>background contents background contents background contents</p>
<p>background contents background contents background contents</p>
<p>background contents background contents background contents</p>
<p>background contents background contents background contents</p>
<p>background contents background contents background contents</p>
<p>background contents background contents background contents</p>
<p>background contents background contents background contents</p>
<p>background contents background contents background contents</p>
<p>background contents background contents background contents</p>
<p>background contents background contents background contents</p>
<div id="shader" class="shader">
<div class="overlay"></div>
<div class="loadingContainer">
<div id="divLoading3">
<div id="loader-wrapper">
<div id="loader"></div>
</div>
</div>
</div>
</div>
关于html - CSS 加载屏幕问题,我们在Stack Overflow上找到一个类似的问题: https://stackoverflow.com/questions/26869416/
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