.wx_top{
    width: 60px;
    height: 60px;
    position: fixed;
    right: 10%;
    bottom: 25%;
    /* animation-name:pulse; */
    animation-duration: 1s;
    animation-iteration-count: infinite; 
    z-index: 999;
    animation: plm 10s linear infinite;
}
.wx_top img{
    width: 100%;
    height: 100%;
}

@keyframes plm {
    25% {
        transform: translateY(25px);
    }
    
    50% {
        transform: translateY(0px);
    }
    75% {
        transform: translateY(-25px);
    }
    100% {
        transform: translateY(0px);
    }
}


@keyframes pulse {
    0% {
        -webkit-transform: scaleX(1);
        transform: scaleX(1)
    }

    50% {
        -webkit-transform: scale3d(1.05,1.05,1.05);
        transform: scale3d(1.05,1.05,1.05)
    }

    to {
        -webkit-transform: scaleX(1);
        transform: scaleX(1)
    }
}