html,body{
    margin: 0;
    padding: 0;
}
/*满天星*/
audio{
    z-index: 5;
    position: absolute;
    bottom: 0;
    opacity: 0.1;
    -webkit-transition: all 2s;
    -moz-transition: all 2s;
    -ms-transition: all 2s;
    -o-transition: all 2s;
    transition: all 2s;
}
audio:hover{
    opacity: 1;
}
.wall{
    position: absolute;
    top: 0;
    left: 0;
    bottom: 0;
    right: 0;
}
div#background{
    background: url("https://www.icnsp.cn/bing.php")no-repeat;
    -webkit-animation: dd 100s linear infinite;
    -moz-animation: dd 100s linear infinite;
    -o-animation: dd 100s linear infinite;
    animation: dd 100s linear infinite;
    background-size: cover;
}
div#midground{
    background: url("./midground.png");
    z-index: 1;
    -webkit-animation: cc 100s linear infinite;
    -moz-animation: cc 100s linear infinite;
    -o-animation: cc 100s linear infinite;
    animation: cc 100s linear infinite;
}
div#foreground{
    background: url("./foreground.png");
    z-index: 2;
    -webkit-animation: cc 153s linear infinite;
    -o-animation: cc 153s linear infinite;
    -moz-animation: cc 153s linear infinite;
    animation: cc 153s linear infinite;
}
div#top{
    background: url("./midground.png");
    z-index: 4;
    -webkit-animation: dd 100s linear infinite;
    -o-animation: dd 100s linear infinite;
    animation: da 100s linear infinite;
}
#text{
	width: 100%;
	font-family: 'Share Tech Mono', monospace;
    color: #ffffff;
    text-align: center;
    position: absolute;
    left: 50%;
    top: 40%;
    -webkit-transform: translate(-50%, -50%);
    transform: translate(-50%, -50%);
    color: #daf6ff;
    /*text-shadow: 0 0 20px #0aafe6;*/
	font-size: 80px;

}
#author{
	font-family: 'Share Tech Mono', monospace;
    color: #ffffff;
    text-align: center;
    position: absolute;
    left: 70%;
    top: 55%;
    -webkit-transform: translate(-50%, -50%);
    transform: translate(-50%, -50%);
    color: #daf6ff;
    /*text-shadow: 0 0 20px #0aafe6;*/
	font-size: 40px;

}
/*响应式字体大小*/
@media screen and (max-width: 720px) {
    #text {
        font-size: 2em;
    }
    #author {
        font-size: 0.7em;
    }
}
@media screen and (max-width: 654px) {
    #text {
        font-size: 2em;
    }
    #author {
        font-size: 0.7em;
    }
}
@media screen and (max-width: 567px) {
    #text {
        font-size: 1.5em;
    }
    #author {
        font-size: 0.6em;
    }
}
@media screen and (max-width: 359px) {
    #text {
        font-size: 1.8em;
    }
    #author {
        font-size: 0.7em;
    }
}

@media screen and (min-width: 767px) {
    #text {
        font-size: 2.5em;
    }
    #author {
        font-size: 1.2em;
    }
}
/*响应式字体大小结束*/
@-webkit-keyframes cc {
    from{
        background-position: 0 0;
        transform: translateY(10px);
    }
    to{
        background-position: 600% 0;
    }
}
@-o-keyframes cc {
    from{
        background-position: 0 0;
        transform: translateY(10px);
    }
    to{
        background-position: 600% 0;
    }
}
@-moz-keyframes cc {
    from{
        background-position: 0 0;
        transform: translateY(10px);
    }
    to{
        background-position: 600% 0;
    }
}
@keyframes cc {
    0%{
        background-position: 0 0;
    }
    100%{
        background-position: 600% 0;
    }
}

@keyframes da {
    0%{
        background-position: 0 0;
    }
    100%{
        background-position: 0 600%;
    }
}
@-webkit-keyframes da {
    0%{
        background-position: 0 0;
    }
    100%{
        background-position: 0 600%;
    }
}
@-moz-keyframes da {
    0%{
        background-position: 0 0;
    }
    100%{
        background-position: 0 600%;
    }
}
@-ms-keyframes da {
    0%{
        background-position: 0 0;
    }
    100%{
        background-position: 0 600%;
    }
}