html - 如何为单个元素加载动画添加整页彩色背景？

Question

我有一个用于加载屏幕元素的 html div。我需要添加整页背景颜色。换句话说，我需要旋转图像位于纯色整页背景之上。

此外，我只能使用一个元素。这是我目前所拥有的:

.animsition-loading {
    background-image: url('../images/logo-loading.png');
    width: 100px;
    height: 111px;
    background-repeat: no-repeat;
    background-size: contain;
    position: fixed;
    top: 50%;
    left: 50%;
    margin-top: -16px;
    margin-left: -16px;
    -webkit-animation: spin1 .5s infinite linear;
    -moz-animation: spin1 .5s infinite linear;
    -o-animation: spin1 .5s infinite linear;
    -ms-animation: spin1 .5s infinite linear;
    animation: spin1 .5s infinite linear;
}

@-webkit-keyframes spin1 {
    0% { -webkit-transform: rotate(0deg);}
    100% { -webkit-transform: rotate(360deg);}
}
@-moz-keyframes spin1 {
    0% { -moz-transform: rotate(0deg);}
    100% { -moz-transform: rotate(360deg);}
}
@-o-keyframes spin1 {
    0% { -o-transform: rotate(0deg);}
    100% { -o-transform: rotate(360deg);}
}
@-ms-keyframes spin1 {
    0% { -ms-transform: rotate(0deg);}
    100% { -ms-transform: rotate(360deg);}
}
@-keyframes spin1 {
    0% { transform: rotate(0deg);}
    100% { transform: rotate(360deg);}
} 

Answer 1

您可以使用伪元素。如果你的容器覆盖了整个视口(viewport)，那么绝对将伪元素放在中心，如下所示:

.animation-loading{
    position: fixed;
    width: 100vw;
    height: 100vh;
    background-color: YOUR_COLOUR;
}    

.animation-loading::after{
    content: "";
    display: block;
    background-image: url('../images/logo-loading.png');
    width: 100px;
    height: 111px;
    background-repeat: no-repeat;
    background-size: contain;
    position: absolute;
    top: 50%;
    left: 50%;
    margin-top: -16px;
    margin-left: -16px;
    -webkit-animation: spin1 .5s infinite linear;
    -moz-animation: spin1 .5s infinite linear;
    -o-animation: spin1 .5s infinite linear;
    -ms-animation: spin1 .5s infinite linear;
    animation: spin1 .5s infinite linear;
}

@-webkit-keyframes spin1 {
    0% { -webkit-transform: rotate(0deg);}
    100% { -webkit-transform: rotate(360deg);}
}
@-moz-keyframes spin1 {
    0% { -moz-transform: rotate(0deg);}
    100% { -moz-transform: rotate(360deg);}
}
@-o-keyframes spin1 {
    0% { -o-transform: rotate(0deg);}
    100% { -o-transform: rotate(360deg);}
}
@-ms-keyframes spin1 {
    0% { -ms-transform: rotate(0deg);}
    100% { -ms-transform: rotate(360deg);}
}
@-keyframes spin1 {
    0% { transform: rotate(0deg);}
    100% { transform: rotate(360deg);}
}