.wavesurfer-ui-toolbar {
    display: flex;
    flex-direction: row;
    justify-content: space-between;
    align-items: center;
}

.wavesurfer-ui-toolbar button {
    display: inline-block;
    text-align: center;
    padding: .65rem 1rem;
    outline: none;
    border: 1px solid transparent;
}

.wavesurfer-ui-toolbar-right-container {
    display: flex;
    flex-direction: row;
    align-items: center;
}

    .wavesurfer-ui-toolbar-right-container span {
        margin-right: 1rem;
    }

.spinner {
    border: 16px solid silver;
    border-top: 16px solid black;
    border-radius: 50%;
    width: 80px;
    height: 80px;
    animation: spin 700ms linear infinite;
    top: 40%;
    left: 55%;
    position: absolute;
}

@keyframes spin {
    0% {
        transform: rotate(0deg)
    }

    100% {
        transform: rotate(360deg)
    }
}