.old-price-notice {
    position: relative;
    display: inline-block;
    margin-left: 5px;
}

.old-price-notice::after {
    content: "««";
    color: red;
    font-size: 20px;
    margin-left: 5px;
    cursor: pointer;
}

.old-price-tooltip {
    visibility: hidden;
    width: 100px;
    background-color: #FF3300;
    color: #fff;
	font-family:Georgia, "Times New Roman", Times, serif;
    text-align: center;
    border-radius: 5px;
    padding: 5px;
    position: absolute;
    bottom: 100%;
    left: 50%;
    margin-left: -60px;
    transition: opacity 0.3s;
	font-size: 12px; 
}

.old-price-notice:hover .old-price-tooltip {
    visibility: visible;
}