[type="search"]::-webkit-search-cancel-button {
    -webkit-appearance: none;
    appearance: none;
    height: 15px;
    width: 15px;
    margin-right: 30px;
    margin-bottom: 10px;
    background-image: url(https://upload.wikimedia.org/wikipedia/commons/thumb/5/5f/Red_X.svg/1024px-Red_X.svg.png);
    background-size: 15px 15px;
}