body {
    display: flex;
    justify-content: center;
    align-items: flex-start;
    height: 100vh;
    margin: 0;
    font-family: Arial, sans-serif;
    background-color: #f4f4f4;
}

.audio-player {
    text-align: center;
}

.controls {
    margin-top: 20px;
}

.play-pause-btn {
    background-color: #FF5722;
    border: none;
    color: white;
    padding: 20px;
    font-size: 24px;
    cursor: pointer;
    border-radius: 50%;
    width: 100px;
    height: 100px;
    display: inline-block;
}

.play-pause-btn:focus {
    outline: none;
}

.speed-controls {
    margin-top: 20px;
}

.speed-btn {
    background-color: #FF5722;
    border: none;
    color: white;
    padding: 10px;
    font-size: 24px;
    cursor: pointer;
    border-radius: 50%;
    width: 50px;
    height: 50px;
    margin: 0 10px;
}

.speed-btn:focus {
    outline: none;
}

.progress-container {
    width: calc(100% - 40px); /* sottrai il margine destro e sinistro */
    margin-left: 20px; /* margine sinistro */
    margin-right: 20px; /* margine destro */
    background-color: #ddd;
    cursor: pointer;
    height: 20px;
    border-radius: 10px;
    margin-top: 20px;
    position: relative;
}

.progress {
    background-color: #FF5722;
    height: 100%;
    width: 0;
    border-radius: 10px;
}

.time-info {
    display: flex;
    justify-content: space-between;
    margin-top: 5px;
	margin-left: 20px; /* margine sinistro */
    margin-right: 20px; /* margine destro */
}

.speed-info {
    margin-top: 10px;
    font-size: 18px;
    color: #333;
}