.btn-back{margin-left:5px;background-color:#b0e719;font-size:16px;font-weight:700}.doc-container{display:-webkit-box;display:-ms-flexbox;display:flex;-webkit-box-orient:horizontal;-webkit-box-direction:normal;-ms-flex-direction:row;flex-direction:row;height:100vh}.sidebar{width:250px;background-color:#f4f4f4;padding:20px;border-right:1px solid #ddd;overflow-y:auto}.sidebar h2{font-size:18px;margin-bottom:10px;color:#333}.sidebar ul{list-style:none;padding:0}.sidebar li{margin-bottom:10px}.sidebar button{width:100%;text-align:left;background:none;border:none;padding:10px;font-size:14px;color:#007bff;cursor:pointer;border-radius:4px;-webkit-transition:background-color .3s;transition:background-color .3s}.sidebar button:hover{background-color:#e9ecef}.content-container{-webkit-box-flex:1;-ms-flex:1;flex:1;padding:20px;background-color:#fff;overflow-y:auto}.content-container h1{font-size:24px;margin-bottom:20px}.content{font-size:16px;line-height:1.6;color:#333}