.audio{
  display: flex;
  align-items: center;
  justify-content: center;
  width: 100%;
  max-height: 12em;
}
svg {
  width: auto;
  height: 40vh;
}

.audio-btn
{
  overflow: hidden;
  margin: 0 auto;

}

.audio-espectro
{ 
  overflow: hidden;
  margin: 0 auto;

}