*{
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}
body{
  
}
#heder_div{
    width: 100vw;
    height: 70px;
    
background: #e0e0e0;
box-shadow:  -5px -5px 4px #5a5a5a,
             5px 5px 4px #ffffff;
          z-index: 1;
}

#content_div{
    width:84vw;
    height: calc(100vh - 70px);
    overflow-y: scroll;
    
}



#Home_page_mane_div{
    width: 100vw;
    height:calc(100vh - 70px)  ;
    background-color: rgb(245, 245, 245);
    display: flex;
    
}
.chat_div{
    display: flex;
    height: 400px;
    margin: 20px;
    width: 100vw;
  
}


#myChart{
    width: 300px;
    height: 100%;
}