body{
  overflow-x: hidden;
}
.sidebar{
  width: 230px;
  height: 100%;
  overflow-y: auto;
  position: fixed;
  left: 0;
  top: 0;
}
.main{
  width: 100%;
  padding-left: 230px;
}
img{
  max-width: 100%;
  height: auto;
}
.nav .nav-item .nav-link{
  color: #0e1123;
}
.nav .nav-item .nav-link.active{
  color: #fff;
  background-color: #4CAF50;
}