@keyframes load {
    0% {
        transform: scale(1);
        background-color: #fff;
        opacity: 0;
        opacity: 1;
    }

    25% {
        transform: scale(1.1);
        background-color: #efefef;
        opacity: 0.75;
    }

    50% {
        transform: scale(1.2);
        background-color: #e9e9e9;
        opacity: 0.5;
    }

    75% {
        transform: scale(1.2);
        background-color: #909090;
        opacity: 0.25;
    }

    100% {
        transform: scale(1);
        background-color: #505050;
        opacity: 0;
    }
}

/* 
    小：.loading-small
    中:.loading-medium
    大：.loading-large
*/
.loading-bg{
    width: 100%;
    height: 100%;
    position: fixed;
    top: 0;
    left: 0;
    background: linear-gradient(135deg, #211c4f, #4c2a38, #192c60, #252858, #1b2158);
    /* background: repeating-linear-gradient(to top left,#0088a9,#00c9a7 5px,#92d5c6 5px,#ebf5ee 10px); */
    z-index: 99999;
    /* animation: button-shine 45s linear infinite; */
}
.loading {
    width: 100%;
    height: 110px;
    /* height: 200px; */
    position: fixed;
    left: 50%;
    top: 40%;
    background: none !important;
    /* top: 36%; */
    transform: translate(-50%, -50%);
}
.loading-medium {
    min-width: 55px;
    height: 55px;
    position: fixed;
    left: 50%;
    top: 68%;
    transform: translate(-50%, -50%);
    z-index: 999999;
}

.loading-medium.loading-small {
    width: 25px;
    height: 25px;
}

.loading-medium span {
    position: absolute;
    width: 6px;
    height: 6px;
    background-color: #efefef;
    border-radius: 50%;
    animation: load 1s linear infinite;
}

.loading-medium.loading-small span {
    width: 4px;
    height: 4px;
}

/* 每个圈圈的位置设置，和动画执行的时间 */
.loading-medium span:first-child {
    top: 0;
    left: 50%;
    margin-left: -2.5px;
    margin-top: -1px;
    animation-delay: 0s;
}

.loading-medium span:nth-child(2) {
    top: 25%;
    right: 25%;
    margin-top: -6.5px;
    margin-right: -7px;
    animation-delay: 0.125s;
}

.loading-medium.loading-small span:nth-child(2) {
    margin-top: -5px;
    margin-left: -5px;
}

.loading-medium span:nth-child(3) {
    top: 50%;
    right: 0;
    margin-top: -2.5px;
    margin-right: -1px;
    animation-delay: 0.25s;
}

.loading-medium span:nth-child(4) {
    bottom: 25%;
    right: 25%;
    margin-bottom: -6.5px;
    margin-right: -7px;
    animation-delay: 0.375s;
}

.loading-medium.loading-small span:nth-child(4) {
    margin-bottom: -5px;
    margin-left: -5px;
}

.loading-medium span:nth-child(5) {
    bottom: 0;
    left: 50%;
    margin-left: -2.5px;
    margin-bottom: -1px;
    animation-delay: 0.5s;
}

.loading-medium span:nth-child(6) {
    bottom: 25%;
    left: 25%;
    margin-left: -7px;
    margin-bottom: -6.5px;
    animation-delay: 0.625s;
}

.loading-medium.loading-small span:nth-child(6) {
    margin-bottom: -5px;
    margin-right: -5px;
}

.loading-medium span:nth-child(7) {
    top: 50%;
    left: 0;
    margin-top: -2.5px;
    margin-left: -1px;
    animation-delay: 0.75s;
}

.loading-medium span:last-child {
    top: 25%;
    left: 25%;
    margin-top: -6.5px;
    margin-left: -7px;
    animation-delay: 0.875s;
}

.loading-medium.loading-small span:last-child {
    margin-top: -5px;
    margin-left: -5px;
}
.loading-logo{
    width: 180px;
    position: absolute;
    left: 50%;
    margin-top: -14%;
    transform: translateX(-50%);
}
.pressed{
    width: 300px;
    /* background-color: #505050; */
    height: 16px;
    border-radius: 8px;
    text-align: center;
    margin-top: 30px;
    padding: 2px;
    box-sizing: border-box;
    border: 2px solid #b87631;
}
#pressing{
    background: linear-gradient(135deg, #a8e063, #56ab2f);
    height: 100%;
    border-radius: 6px;
    text-align: center;
    /* animation: button-shine 45s linear infinite; */
    transition: all 1s;
    width: 0%;
}
#example{
    width: 100%;
    position: relative;
    color: aliceblue;
    text-align: center;
    margin-top: 20px; 
}

@-webkit-keyframes button-shine {
    0% {
        background-position: -1000px 0
    }
    to {
        background-position: 1000px 0
    }
}
@keyframes button-shine {
    0% {
        background-position: -1000px 0
    }
    to {
        background-position: 1000px 0
    }
}