<button onclick="console.log('保存')">点我保存</button>

button {
    animation: throttle 2s step-end forwards;
}
button:active {
    animation: none;
}

@keyframes throttle {
    from {
/*         color: red; */
        pointer-events: none;
    }
    to {
/*         color: green; */
        pointer-events: all;
    }
}