style.css

[data-testid="stSidebarNav"] {
                background-image: url("https://github.com/dataprofessor/st-multipage-with-logo/raw/master/logo.png");
                background-size: 80%;
                background-repeat: no-repeat;
                padding-top: 80px;
                margin-top: 40px;
                background-position: center top;
                /* background-position: 20px 20px; */
            }
[data-testid="stSidebarNav"]::before {
                content: "Data Science course";
                margin-left: 20px;
                margin-top: 20px;
                font-size: 25px;
                position: relative;
                top: 100px;
            }

section[data-testid="stSidebar"] {
            width: 370px !important; # Set the width to your desired value
        }

[data-testid="stButton"] {
  margin-bottom: 0px;
  margin-top: 0px;
  border-color: #E5E7E9;
}

li a:hover {
  background: #F7DC6F;
}


[id="1-lesson-1"]::after {
  padding-top:100px;
}


/* Sidebar */

  .sidebar {
  margin: 0;
  width: 100%;
  padding: 0;
  background-color: #F2F3F4;
  position: relative;
  height: 100%;
  overflow: auto;
  text-indent: 10px;
  border-radius: 10px;
}

.sidebar a {
  display: block;
  color: #2C3E50;
  padding: 12px;
  text-decoration: none;
  list-style-type: circle;
}
 
.sidebar a.active {
  background-color: #F63366;
  color: white;
}

.sidebar a:hover:not(.active) {
  /* background-color: #555; */
  background-color: #F63366;
  color: white;
}