.containerthumbnails {
    max-width: 100%;
    padding: 10px;
}

.cardthumbnails {
    background-color: white;
    border-radius: 5px;
    box-shadow: 0 2px 4px rgba(0, 0, 0, 0.1);
    margin: 10px 0;
    padding: 20px;
}

.input-groupthumbnails {
    margin: 10px 0;
}

.input-groupthumbnails label {
    display: block;
    margin-bottom: 5px;
}

.input-groupthumbnails input {
    width: 100%;
    padding: 10px;
    border: 1px solid #ccc;
    border-radius: 5px;
}

.buttonthumbnails {
    background-color: #1976D2;
    color: white;
    border: none;
    border-radius: 5px;
    padding: 10px;
    width: 100%;
    cursor: pointer;
}

.button:hover {
    background-color: #1565C0;
}

.video-previewthumbnails {
    position: relative;
    padding-top: 56.25%; /* 16:9 aspect ratio */
}

video {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
}

canvas {
    max-width: 100%;
    height: auto;
    border: 1px solid #ddd;
}

.video-infothumbnails {
    margin-top: 10px;
}

.save-buttonthumbnails {
    background-color: #4CAF50;
    color: white;
    border: none;
    border-radius: 5px;
    padding: 10px;
    width: 100%;
    cursor: pointer;
    margin-top: 10px;
}