.section{
    width: 100%;
    position: relative;
    display: inline-block;
}
.section img{
    width: 100%;
    display: block;

}
.section .button{
    position: absolute;
    width: 60%;
    height: 90px;
    font-size: 55px;
    text-align: center;
    padding-top: 10px;
    margin-left: 20%;
    margin-top: -200px;
    border-radius: 50px;
    background: #FD353EFF;
    color: #ffffff;
}

.loader-model {
    width: 100%;
    height: 100%;
    z-index: 9999;
    background: rgba(135, 135, 135, 0.4);
    position: fixed;
    top: 0;
    bottom: 0;
    align-items: center;
    display: flex;
    justify-content: center;
}

.loader-model-min {
    position: relative;
    background: #000000;
    border-radius: 20px;
    padding: 20px;
    width: 50px;
    height: 50px;
    display: flex;
    align-items: center;
    justify-content: center;
}

.loader,
.loader:before,
.loader:after {
    background: #FFF;
    /*
        * load1：执行的动画名
        * 1s：执行一秒
        * infinite：执行无限次
        * ease-in-out：动画以低速开始和结束
        */
    animation: load1 1s infinite ease-in-out;
    width: 1em;
    height: 2.5em;
}

.loader:before,
.loader:after {
    position: absolute;
    top: 0;
    content: '';
}

.loader:before {
    left: -1.5em;
}

.loader {
    text-indent: -9999em;
    /*margin: 40% auto;*/
    position: relative;
    font-size: 11px;
    /* 延时0.16s */
    animation-delay: 0.16s;

    align-items: center;
    justify-content: center;
    /*top: 50%;*/
    /*left: 50%;*/
}

.loader:after {
    left: 1.5em;
    /* 延时0.32s */
    animation-delay: 0.32s;
}

@keyframes load1 {

    0%,
    80%,
    100% {
        box-shadow: 0 0 #FFF;
        height: 2.5em;
    }

    40% {
        /* 实现上部拉伸 */
        box-shadow: 0 -1.5em #ffffff;
        /* 实现下部拉伸 */
        height: 3em;
    }
}