This link contains a code to make HTML dropdown lists.

https://www.w3schools.com/howto/tryit.asp?filename=tryhow_css_dropdown_navbar

However, if I want to make the bar header and fix its position by modifying the following

.navbar {
  overflow: hidden;
  background-color: #333;
}

to

.navbar {
  overflow: hidden;
  background-color: #333;
  position: fixed;
  top: 0;
}

it won't work again. Please help me to fix this issue.

CodePudding user response：

Remove overflow: hidden; from the .navbar