body {
    display: flex;
   
    }
      margin:
      front-family:arial,sans-serif;
    }
 
    .container{
      display:flex;
    flex-wrap: auto;
   }

.sidebar{
    width:220px;
    height:100vh;
    background-color:#333
    color:white;
    padding:20px;
   position:fixed:
   left:0;
  }


   .main-content{
     flex-grow:1;
     margin-left:240px;
     padding:30px;
     background-color:#f4f4f4;
}
img {
    display: block;
    margin: auto;