.custom-search-box {
    position: relative;
    max-width: 400px;
}
#custom-search-input {
    width: 100%;
    padding: 10px;
    font-size: 16px;
}
#custom-search-results {
    background: #fff;
    border: 1px solid #ddd;
    position: absolute;
    width: 100%;
    max-height: 250px;
    overflow-y: auto;
    z-index: 999;
}
.custom-search-results-list {
    list-style: none;
    margin: 0;
    padding: 0;
}
.custom-search-results-list li {
    padding: 8px;
    border-bottom: 1px solid #eee;
}
.custom-search-results-list li a {
    text-decoration: none;
    color: #333;
}
.custom-search-results-list li:hover {
    background: #f4f4f4;
}