*[data-tooltip] {
    position: relative;
}

*[data-tooltip]::after {
    content: attr(data-tooltip);
    position: absolute;
    text-align: center;
    border-radius: 10px;
    top: -40px;
    right: 0px;
    pointer-events: none;
    opacity: 0;
    -webkit-transition: opacity .15s ease-in-out;
    -moz-transition: opacity .15s ease-in-out;
    -ms-transition: opacity .15s ease-in-out;
    -o-transition: opacity .15s ease-in-out;
    transition: opacity .15s ease-in-out;
    display: block;
    font-size: 16px;
    line-height: 16px;
    background: #fff;
    padding: 10px;
    border: 1px solid #c0c0c0;
    box-shadow: 2px 4px 5px rgba(0, 0, 0, 0.4);
}

*[data-tooltip]:hover::after {
    opacity: 1;
    z-index: 70;
}

button {
    display: inline-block;
    position: relative;
    overflow: hidden;
    transition: all ease-in-out .5s;
}

button:hover {
    filter: brightness(90%);
}

button::after {
    content: "";
    display: block;
    position: absolute;
    top: 0;
    left: 25%;
    height: 100%;
    width: 50%;
    background-color: #000;
    border-radius: 50%;
    opacity: 0;
    pointer-events: none;
    transition: all ease-in-out 0.4s;
    transform: scale(5, 5);
}

button:active::after {
    padding: 0;
    margin: 0;
    opacity: .2;
    transition: 0s;
    transform: scale(0, 0);
}