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: "LLM course";
                margin-left: 20px;
                margin-top: 20px;
                font-size: 25px;
                position: relative;
                top: 100px;
            }

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

li a:hover {
  background: #F7DC6F;
}

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

/* Style the button with the class "css-1x5kdwo" */
.css-1x5kdwo {
  /* Add your button styles here */
  background-color: #FEE7ED; /* Change to your preferred background color */
  /* color: #FFF;  /* Change to your preferred text color */
  border: none;
  padding: 8px 16px;
  border-radius: 5px;
  font-size: 16px;
  cursor: pointer;
  margin-bottom: -20px;
  margin-top: -20px;
}

/* Change background color and text color on hover */
.css-1x5kdwo:hover {
  background-color: #F63366; /* Change to your preferred hover background color */
  color: #FFF; /* Change to your preferred hover text color */
}