button {
    border: none;
    color: #fff;
    border-radius: 15px;
    background-size: 100% auto;
    font-family: inherit;
    font-size: 17px;
    padding: 0.6em 1.5em;
}

button:hover {
    background-position: right center;
    background-size: 200% auto;
    -webkit-animation: pulse 2s infinite;
    animation: pulse512 1.5s infinite;
}

.load-image-button {
    border: none;
    color: #fff;
    border-radius: 15px;
    background-size: 100% auto;
    font-family: inherit;
    font-size: 17px;
    padding: 0.6em 1.5em;
}

    .load-image-button:hover {
        background-position: right center;
        background-size: 200% auto;
        -webkit-animation: pulse 2s infinite;
        animation: pulse512 1.5s infinite;
    }

@keyframes pulse512 {
    0% {
        box-shadow: 0 0 0 0 #05bada66;
    }

    70% {
        box-shadow: 0 0 0 10px rgb(218 103 68 / 0%);
    }

    100% {
        box-shadow: 0 0 0 0 rgb(218 103 68 / 0%);
    }
}