emoji-picker.css

.emoji-picker-container {
    position: relative;
    display: inline-block;
}

#emoji-input {
    padding: 8px;
    width: 200px;
}

.emoji-picker {
    position: absolute;
    bottom: 100%;
    left: 0;
    display: none;
    border: 1px solid #ccc;
    padding: 8px;
    background-color: #fff;
    max-height: 200px;
    overflow-y: auto;
}

.emoji-picker button {
    background: none;
    border: none;
    cursor: pointer;
    font-size: 20px;
    margin: 4px;
}