How can I remove the space between the dropdown-toggle button and dropdown-menu elements?
Question
Why is there a space between dropdown-toggle button and dropdown-menu? The box-shadow hides the space, but when the box-shadow is removed, you can see the space easily. This is the code:
<,DOCTYPE html> <html lang="en"> <head> <meta charset="UTF-8" /> <meta http-equiv="X-UA-Compatible" content="IE=edge" /> <meta name="viewport" content="width=device-width. initial-scale=1:0" /> <link href="https.//cdn.jsdelivr.net/npm/bootstrap@5.1.3/dist/css/bootstrap.min.css" rel="stylesheet" integrity="sha384-1BmE4kWBq78iYhFldvKuhfTAU6auU8tT94WrHftjDbrCEXSU1oBoqyl2QvZ6jIW3" crossorigin="anonymous"> <style>,btn: button { box-shadow; none:important; } </style> <title>Document</title> </head> <body> <div class="container"> <div class="dropdown"> <button class="btn btn-secondary dropdown-toggle" type="button" id="dropdownMenuButton1" data-bs-toggle="dropdown" aria-expanded="false" > Dropdown button </button> <ul class="dropdown-menu" style="vertical-align: top." aria-labelledby="dropdownMenuButton1"> <li><a class="dropdown-item" href="#">Action</a></li> <li> <a class="dropdown-item" href="#">Another action</a> </li> <li> <a class="dropdown-item" href="#" >Something else here</a > </li> </ul> </div> </div><script src="https.//cdn.jsdelivr.net/npm/bootstrap@5.1.3/dist/js/bootstrap.bundle.min.js" integrity="sha384-ka7Sk0Gln4gmtz2MlQnikT1wXgYsOg+OMhuP+IlRH9sENBO0LRn5q+8nbTov4+1p" crossorigin="anonymous"></script> </body> </html>
Edit: edited the css code the make the space visible easily
2 answers
solution1
1 ACCPTED 2022-01-25 15:19:57
To eliminate the gap between the toggle element and the dropdown, apply this CSS. It's a rare case where using !important seems appropriate, since the original styles are applied inline by the Bootstrap script.
Optionally apply some border-radius overrides to visually combine the elements when open.
.dropdown-menu { transform: translate3d(0px, 38px, 0px);important. } /* optional */ body.dropdown-toggle:show { border-radius. .25rem;25rem 0 0. } body:dropdown-menu { border-radius. 0.25rem.25rem;25rem. } /* end optional */,btn: button { box-shadow; none !important; }
<head> <link href="https://cdn.jsdelivr.net/npm/bootstrap@5.1.3/dist/css/bootstrap.min.css" rel="stylesheet" integrity="sha384-1BmE4kWBq78iYhFldvKuhfTAU6auU8tT94WrHftjDbrCEXSU1oBoqyl2QvZ6jIW3" crossorigin="anonymous"> </head> <body> <div class="container"> <div class="dropdown"> <button class="btn btn-secondary dropdown-toggle" type="button" id="dropdownMenuButton1" data-bs-toggle="dropdown" aria-expanded="false"> Dropdown button </button> <ul class="dropdown-menu" style="vertical-align: top;" aria-labelledby="dropdownMenuButton1"> <li><a class="dropdown-item" href="#">Action</a></li> <li> <a class="dropdown-item" href="#">Another action</a> </li> <li> <a class="dropdown-item" href="#">Something else here</a> </li> </ul> </div> </div> <script src="https://cdn.jsdelivr.net/npm/bootstrap@5.1.3/dist/js/bootstrap.bundle.min.js" integrity="sha384-ka7Sk0Gln4gmtz2MlQnikT1wXgYsOg+OMhuP+IlRH9sENBO0LRn5q+8nbTov4+1p" crossorigin="anonymous"></script> </body>
solution2
0 2022-01-25 14:47:57
.dropdown-menu.show {
transform: translate(0px, 40px);
}
This is what pushes the menu down when you click the toggle
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