.input-search {
    position: relative;
}

.suggestions {
    display: none;
    position: absolute;
    top: 100%;
    left: 0;
    right: 0;
    background: white;
    border: 1px solid #ccc;
    z-index: 1000;
}

.suggestions div {
    padding: 8px;
    cursor: pointer;
}

.suggestions div:hover {
    background: #f0f0f0;
}