.left-side-panel-wrapper {
    position: fixed;
    top: 40%;
    left: 0;
    transform: translateY(-50%);
    z-index: 9999;
}

.left-side-tab {
    background: linear-gradient(to right, #283618, #283618, #283618, #34A853);
    color: #fff;
    padding: 10px 20px;
    font-size: 16px;
    font-weight: 600;
    white-space: nowrap;
    border-radius: 0 8px 8px 0;
    
    transform-origin: left top;   /* Rotation ke baad correct alignment */
    transform: rotate(-90deg) translate(-100%, 0);
    display: inline-block;        /* Height/width respect ho */
}