I copied everything from Bootstrap, but my navbar stays collapsed on mobile and tablet. When i click the icon, there is a movement, like they try to go up and down.
I attached the code below :
<nav class="navbar navbar-expand-lg navbar-dark ">
<div class="container-fluid ">
<!-- <a class="navbar-brand" href="#">Navbar</a> -->
<button class="navbar-toggler" type="button" data-bs-toggle="collapse" data-bs-target="#navbarNav" aria-controls="navbarNav" aria-expanded="false" aria-label="Toggle navigation">
<span class="navbar-toggler-icon"></span>
</button>
<div class="collapse navbar-collapse d-flex justify-content-center" id="navbarNav">
<ul class="navbar-nav my-5 fs-5">
<li class="nav-item me-5">
<a class="nav-link active" aria-current="page" href="#">Home</a>
</li>
<li class="nav-item me-5">
<a class="nav-link" href="#">Tour List</a>
</li>
<li class="nav-item me-5">
<a class="nav-link" href="#">Tour Search</a>
</li>
<!-- LOGO -->
<img src="/images/Landing-logo.png" width="125px" alt="">
<!-- LOGO -->
<li class="nav-item ms-5">
<a class="nav-link" href="#">Desinations</a>
</li>
<li class="nav-item ms-5">
<a class="nav-link" href="#">Pages</a>
</li>
<li class="nav-item ms-5">
<a class="nav-link" href="#">Blog</a>
</li>
</ul>
</div>
</div>
</nav>
this is code snippet for responsive navbar you can adjust it accordingly.
<nav class="navbar navbar-expand-lg navbar-light bg-light">
<div class="container-fluid">
<a class="navbar-brand" href="#">Navbar</a>
<button class="navbar-toggler" type="button" data-bs-toggle="collapse" data-bs-target="#navbarSupportedContent" aria-controls="navbarSupportedContent" aria-expanded="false" aria-label="Toggle navigation">
<span class="navbar-toggler-icon"></span>
</button>
<div class="collapse navbar-collapse" id="navbarSupportedContent">
<ul class="navbar-nav me-auto mb-2 mb-lg-0">
<li class="nav-item">
<a class="nav-link active" aria-current="page" href="#">Home</a>
</li>
<li class="nav-item">
<a class="nav-link" href="#">Link</a>
</li>
<li class="nav-item dropdown">
<a class="nav-link dropdown-toggle" href="#" id="navbarDropdown" role="button" data-bs-toggle="dropdown" aria-expanded="false">
Dropdown
</a>
<ul class="dropdown-menu" aria-labelledby="navbarDropdown">
<li><a class="dropdown-item" href="#">Action</a></li>
<li><a class="dropdown-item" href="#">Another action</a></li>
<li><hr class="dropdown-divider"></li>
<li><a class="dropdown-item" href="#">Something else here</a></li>
</ul>
</li>
<li class="nav-item">
<a class="nav-link disabled" href="#" tabindex="-1" aria-disabled="true">Disabled</a>
</li>
</ul>
<form class="d-flex">
<input class="form-control me-2" type="search" placeholder="Search" aria-label="Search">
<button class="btn btn-outline-success" type="submit">Search</button>
</form>
</div>
</div>
</nav>```
Related
can someone help me. I've got the navbar and dropdown menu from bootstrap 5 but while trying to open the dropdown it has no action
<!-- NAV BAR BOOTSRAP 5-->
<nav class="navbar navbar-expand-lg bg-light">
<div class="container-fluid">
<a class="navbar-brand" href="/">Andres Pachano</a>
<button class="navbar-toggler" type="button" data-bs-toggle="collapse" data-bs-target="#navbarSupportedContent" aria-controls="navbarSupportedContent" aria-expanded="false" aria-label="Toggle navigation">
<span class="navbar-toggler-icon"></span>
</button>
<div class="collapse navbar-collapse" id="navbarSupportedContent">
<ul class="navbar-nav me-auto mb-2 mb-lg-0">
<li class="nav-item">
<a class="nav-link active" aria-current="page" href="/">Home</a>
</li>
<li class="nav-item">
<a class="nav-link" href="http://127.0.0.1:5000/about-me">About Me</a>
</li>
<li class="nav-item dropdown">
<a class="nav-link dropdown-toggle" href="#" id="navbarDropdown" role="button" data-bs-toggle="dropdown" aria-expanded="true">
More options
</a>
<ul class="dropdown-menu" aria-labelledby="navbarDropdown">
<li><a class="dropdown-item" href="#">GitHub</a></li>
<li><a class="dropdown-item" href="#">Another action</a></li>
<li>
<hr class="dropdown-divider">
</li>
<li><a class="dropdown-item" href="#">Something else here</a></li>
</ul>
</li>
<!--<li class="nav-item">
<a class="nav-link disabled">Disabled</a>
</li>-->
</ul>
<form class="d-flex" role="search">
<input class="form-control me-2" type="search" placeholder="Search" aria-label="Search">
<button class="btn btn-outline-success" type="submit">Search</button>
</form>
</div>
</div>
</nav>
It has the drop down menu included.
The Dropdown for Bootstrap needs a Script-Dependency. For Bootstrap-5 the JS-Bundle is:
<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>
<link href="https://cdn.jsdelivr.net/npm/bootstrap#5.1.3/dist/css/bootstrap.min.css" rel="stylesheet" integrity="sha384-1BmE4kWBq78iYhFldvKuhfTAU6auU8tT94WrHftjDbrCEXSU1oBoqyl2QvZ6jIW3" crossorigin="anonymous">
<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>
<!-- NAV BAR BOOTSRAP 5-->
<nav class="navbar navbar-expand-lg bg-light">
<div class="container-fluid">
<a class="navbar-brand" href="/">Andres Pachano</a>
<button class="navbar-toggler" type="button" data-bs-toggle="collapse" data-bs-target="#navbarSupportedContent" aria-controls="navbarSupportedContent" aria-expanded="false" aria-label="Toggle navigation">
<span class="navbar-toggler-icon"></span>
</button>
<div class="collapse navbar-collapse" id="navbarSupportedContent">
<ul class="navbar-nav me-auto mb-2 mb-lg-0">
<li class="nav-item">
<a class="nav-link active" aria-current="page" href="/">Home</a>
</li>
<li class="nav-item">
<a class="nav-link" href="http://127.0.0.1:5000/about-me">About Me</a>
</li>
<li class="nav-item dropdown">
<a class="nav-link dropdown-toggle" href="#" id="navbarDropdown" role="button" data-bs-toggle="dropdown" aria-expanded="true">
More options
</a>
<ul class="dropdown-menu" aria-labelledby="navbarDropdown">
<li><a class="dropdown-item" href="#">GitHub</a></li>
<li><a class="dropdown-item" href="#">Another action</a></li>
<li>
<hr class="dropdown-divider">
</li>
<li><a class="dropdown-item" href="#">Something else here</a></li>
</ul>
</li>
<!--<li class="nav-item">
<a class="nav-link disabled">Disabled</a>
</li>-->
</ul>
<form class="d-flex" role="search">
<input class="form-control me-2" type="search" placeholder="Search" aria-label="Search">
<button class="btn btn-outline-success" type="submit">Search</button>
</form>
</div>
</div>
</nav>
I'am learning how to use bootstrap, but I have a problem with reponsiveness.
When I have my content wide it looks like my navbar doesn't expand to the right:
Here is code of my navbar:
<nav class="navbar navbar-expand-lg navbar-light bg-light">
<div class="container-fluid">
<a class="navbar-brand" href="#">Navbar</a>
<button class="navbar-toggler" type="button" data-bs-toggle="collapse" data-bs-target="#navbarSupportedContent" aria-controls="navbarSupportedContent" aria-expanded="false" aria-label="Toggle navigation">
<span class="navbar-toggler-icon"></span>
</button>
<div class="collapse navbar-collapse" id="navbarSupportedContent">
<ul class="navbar-nav me-auto mb-2 mb-lg-0">
<li class="nav-item">
<a class="nav-link active" aria-current="page" href="#">Home</a>
</li>
<li class="nav-item">
<a class="nav-link" href="#">Link</a>
</li>
<li class="nav-item dropdown">
<a class="nav-link dropdown-toggle" href="#" id="navbarDropdown" role="button" data-bs-toggle="dropdown" aria-expanded="false">
Dropdown
</a>
<ul class="dropdown-menu" aria-labelledby="navbarDropdown">
<li><a class="dropdown-item" href="#">Action</a></li>
<li><a class="dropdown-item" href="#">Another action</a></li>
<li><hr class="dropdown-divider"></li>
<li><a class="dropdown-item" href="#">Something else here</a></li>
</ul>
</li>
<li class="nav-item">
<a class="nav-link disabled" href="#" tabindex="-1" aria-disabled="true">Disabled</a>
</li>
</ul>
<form class="d-flex">
<input class="form-control me-2" type="search" placeholder="Search" aria-label="Search">
<button class="btn btn-outline-success" type="submit">Search</button>
</form>
</div>
</div>
</nav>
Does anybody know how to fix it?
Can you put an id or a class and then select it in your css file. After that you can give
width: 100% or width: 100vw if these don't work u can use overflow-x: hidden;
The navbar-right doesn't work and I looked over other questions with the same problem but couldn't find a way to make it function. I even tried float right on the li elements but doesn't work.
<nav class="navbar navbar-expand-lg navbar-light bg-transparent fixed-top">
<a class="navbar-brand" href="#">Navbar</a>
<button class="navbar-toggler" type="button" data-toggle="collapse" data-target="#navbarSupportedContent" aria-controls="navbarSupportedContent" aria-expanded="false" aria-label="Toggle navigation">
<span class="navbar-toggler-icon"></span>
</button>
<div id="nav-content" class="collapse navbar-collapse" id="navbarSupportedContent">
<ul class="navbar-nav mr-auto navbar-right">
<li class="nav-item active">
<a class="nav-link" href="#">Home <span class="sr-only">(current)</span></a>
</li>
<li class="nav-item">
<a class="nav-link" href="#">Link</a>
</li>
<li class="nav-item dropdown">
<a class="nav-link dropdown-toggle" href="#" id="navbarDropdown" role="button" data-toggle="dropdown" aria-haspopup="true" aria-expanded="false">
Dropdown
</a>
<div class="dropdown-menu" aria-labelledby="navbarDropdown">
<a class="dropdown-item" href="#">Action</a>
<a class="dropdown-item" href="#">Another action</a>
<div class="dropdown-divider"></div>
<a class="dropdown-item" href="#">Something else here</a>
</div>
</li>
<li class="nav-item">
<a class="nav-link" href="#">Disabled</a>
</li>
</ul>
</div>
</nav>
<div id="view" class="full-page-cover"></div>
Assuming that you're using bootstrap for this, If what you want is to align the nav bar to the right most of the page, you should change the <ul class="navbar-nav mr-auto navbar-right"> to <ul class="navbar-nav ml-auto navbar-right">. In bootstrap mr-auto adds margin to the right of an element and ml-auto adds margin to the left of an element.
So the final code should be,
<nav class="navbar navbar-expand-lg navbar-light bg-transparent fixed-top">
<a class="navbar-brand" href="#">Navbar</a>
<button class="navbar-toggler" type="button" data-toggle="collapse" data-target="#navbarSupportedContent" aria-controls="navbarSupportedContent" aria-expanded="false" aria-label="Toggle navigation">
<span class="navbar-toggler-icon"></span>
</button>
<div id="nav-content" class="collapse navbar-collapse" id="navbarSupportedContent">
<ul class="navbar-nav ml-auto navbar-right">
<li class="nav-item active">
<a class="nav-link" href="#">Home <span class="sr-only">(current)</span></a>
</li>
<li class="nav-item">
<a class="nav-link" href="#">Link</a>
</li>
<li class="nav-item dropdown">
<a class="nav-link dropdown-toggle" href="#" id="navbarDropdown" role="button" data-toggle="dropdown" aria-haspopup="true" aria-expanded="false">
Dropdown
</a>
<div class="dropdown-menu" aria-labelledby="navbarDropdown">
<a class="dropdown-item" href="#">Action</a>
<a class="dropdown-item" href="#">Another action</a>
<div class="dropdown-divider"></div>
<a class="dropdown-item" href="#">Something else here</a>
</div>
</li>
<li class="nav-item">
<a class="nav-link" href="#">Disabled</a>
</li>
</ul>
</div>
</nav>
<div id="view" class="full-page-cover"></div>
I have a bootstrap nav bar, and I would like to have both collapse-able and non collapse-able menu items.
my code is as follows:
<link rel="stylesheet" href="https://stackpath.bootstrapcdn.com/bootstrap/4.1.3/css/bootstrap.min.css" integrity="sha384-MCw98/SFnGE8fJT3GXwEOngsV7Zt27NXFoaoApmYm81iuXoPkFOJwJ8ERdknLPMO" crossorigin="anonymous">
<nav class="navbar navbar-toggleable-md navbar-light fixed-top">
<div class="container">
<a class="navbar-brand" href="https://ngohub.asia">
<%= image_tag 'ngohublogo.png', class: 'hidden-md-down img-responsive', style: 'width: 100%'%>
<%= image_tag 'ngohublogo.png', class: 'hidden-lg-up img-responsive w-100'%>
</a>
<div class="w-100" style="float:right;">
<ul class="navbar-nav mr-auto">
<li class="nav-item active">
<a class="nav-link" href="#">Login <span class="sr-only">(current)</span></a>
</li>
<li class="nav-item active">
<a class="nav-link">|</a>
</li>
<li class="nav-item">
<a class="nav-link" href="#">Sign Up </a>
</li>
</ul>
</div>
<button class="navbar-toggler" type="button" data-toggle="collapse" data-target="#navbarSupportedContent" aria-controls="navbarSupportedContent" aria-expanded="false" aria-label="Toggle navigation">
<span class="navbar-toggler-icon"></span>
</button>
<div class="collapse navbar-collapse" id="navbarSupportedContent">
<ul class="navbar-nav mr-auto">
<li class="nav-item active">
<a class="nav-link" href="#">Home <span class="sr-only">(current)</span></a>
</li>
<li class="nav-item">
<a class="nav-link" href="#">Link</a>
</li>
<li class="nav-item dropdown">
<a class="nav-link dropdown-toggle" href="#" id="navbarDropdown" role="button" data-toggle="dropdown" aria-haspopup="true" aria-expanded="false">
Dropdown
</a>
<div class="dropdown-menu" aria-labelledby="navbarDropdown">
<a class="dropdown-item" href="#">Action</a>
<a class="dropdown-item" href="#">Another action</a>
<div class="dropdown-divider"></div>
<a class="dropdown-item" href="#">Something else here</a>
</div>
</li>
<li class="nav-item">
<a class="nav-link disabled" href="#">Disabled</a>
</li>
</ul>
<form class="form-inline my-2 my-lg-0">
<input class="form-control mr-sm-2" type="search" placeholder="Search" aria-label="Search">
<button class="btn btn-outline-success my-2 my-sm-0" type="submit">Search</button>
</form>
</div>
</nav>
The login and sign up links appear as expected to the left of the brand,
however when I decrese the size of the browser window to simulate a mobile device, the links aren't sharing space with the brand as I would like:
Here it is on a full width screen
here it is in a simulated mobile view. I would like login and sign up to be next to the brand and next to the hamburger
First thing of note, visibility helpers have been renamed in the latest version of bootstrap. hidden-md has been replaced with .d-md-none, etc.
Second, I made sure to declare flex-direction: row; on .navbar-nav to arrange it's children horizontally instead of vertically.
.navbar .navbar-nav{
flex-direction: row;
}
<link rel="stylesheet" href="https://stackpath.bootstrapcdn.com/bootstrap/4.1.3/css/bootstrap.min.css" integrity="sha384-MCw98/SFnGE8fJT3GXwEOngsV7Zt27NXFoaoApmYm81iuXoPkFOJwJ8ERdknLPMO" crossorigin="anonymous">
<nav class="navbar navbar-toggleable-md navbar-light fixed-top">
<div class="container">
<a class="navbar-brand" href="https://ngohub.asia">
<img src="https://via.placeholder.com/200x50" class="hidden-md-down img-responsive" style="width: 100%" />
</a>
<div style="float:right;">
<ul class="navbar-nav mr-auto">
<li class="nav-item active">
<a class="nav-link" href="#">Login <span class="sr-only">(current)</span></a>
</li>
<li class="nav-item active">
<a class="nav-link">|</a>
</li>
<li class="nav-item">
<a class="nav-link" href="#">Sign Up </a>
</li>
</ul>
</div>
<button class="navbar-toggler" type="button" data-toggle="collapse" data-target="#navbarSupportedContent" aria-controls="navbarSupportedContent" aria-expanded="false" aria-label="Toggle navigation">
<span class="navbar-toggler-icon"></span>
</button>
<div class="collapse navbar-collapse" id="navbarSupportedContent">
<ul class="navbar-nav mr-auto">
<li class="nav-item active">
<a class="nav-link" href="#">Home <span class="sr-only">(current)</span></a>
</li>
<li class="nav-item">
<a class="nav-link" href="#">Link</a>
</li>
<li class="nav-item dropdown">
<a class="nav-link dropdown-toggle" href="#" id="navbarDropdown" role="button" data-toggle="dropdown" aria-haspopup="true" aria-expanded="false">
Dropdown
</a>
<div class="dropdown-menu" aria-labelledby="navbarDropdown">
<a class="dropdown-item" href="#">Action</a>
<a class="dropdown-item" href="#">Another action</a>
<div class="dropdown-divider"></div>
<a class="dropdown-item" href="#">Something else here</a>
</div>
</li>
<li class="nav-item">
<a class="nav-link disabled" href="#">Disabled</a>
</li>
</ul>
<form class="form-inline my-2 my-lg-0">
<input class="form-control mr-sm-2" type="search" placeholder="Search" aria-label="Search">
<button class="btn btn-outline-success my-2 my-sm-0" type="submit">Search</button>
</form>
</div>
</nav>
There are a few different ways you can approach this. Remember that in Bootstrap 4.1, the navbar-toggleable classes have been replaced with navbar-expand-.
Use flex-row on the first navbar-nav so that it doens't wrap/stack in a column on smaller screens. Use flex-grow-1 on the collapse so that it expands the remaining width.
Demo: https://www.codeply.com/go/LBY9LXio09
<nav class="navbar clg navbar-light fixed-top">
<div class="container-fluid">
<a class="navbar-brand" href="https://ngohub.asia">
<img src="//placehold.it/40?text=sm" class="d-lg-none d-inline">
<img src="//placehold.it/100x30?text=lg" class="d-lg-inline d-none">
</a>
<div class="mr-auto flex-shrink-1">
<ul class="navbar-nav flex-row">
<li class="nav-item active">
<a class="nav-link" href="#">Login <span class="sr-only">(current)</span></a>
</li>
<li class="nav-item px-1">
<a class="nav-link">|</a>
</li>
<li class="nav-item">
<a class="nav-link" href="#">Sign Up </a>
</li>
</ul>
</div>
<button class="navbar-toggler" type="button" data-toggle="collapse" data-target="#navbarSupportedContent" aria-controls="navbarSupportedContent" aria-expanded="false" aria-label="Toggle navigation">
<span class="navbar-toggler-icon"></span>
</button>
<div class="collapse navbar-collapse flex-grow-1" id="navbarSupportedContent">
<ul class="navbar-nav ml-auto">
<li class="nav-item active">
<a class="nav-link" href="#">Home <span class="sr-only">(current)</span></a>
</li>
<li class="nav-item">
<a class="nav-link" href="#">Link</a>
</li>
<li class="nav-item dropdown">
<a class="nav-link dropdown-toggle" href="#" id="navbarDropdown" role="button" data-toggle="dropdown" aria-haspopup="true" aria-expanded="false">
Dropdown
</a>
<div class="dropdown-menu" aria-labelledby="navbarDropdown">
<a class="dropdown-item" href="#">Action</a>
<a class="dropdown-item" href="#">Another action</a>
<div class="dropdown-divider"></div>
<a class="dropdown-item" href="#">Something else here</a>
</div>
</li>
<li class="nav-item">
<a class="nav-link disabled" href="#">Disabled</a>
</li>
</ul>
<form class="form-inline d-inline my-2 my-lg-0">
<input class="form-control mr-sm-2" type="search" placeholder="Search" aria-label="Search">
<button class="btn btn-outline-success my-2 my-sm-0" type="submit">Search</button>
</form>
</div>
</div>
</nav>
This question already has answers here:
Bootstrap NavBar with left, center or right aligned items
(14 answers)
Bootstrap align navbar items to the right
(24 answers)
Closed 4 years ago.
I'm very new to bootstrap so this is probably an easy question for most. I have a navbar, want two nav items and an input field to be on the left side of the navbar. With the two remaining nav items on the right. I have tried messing with the classes to make this happen and using the "float-left" and "float-right" classes but no joy :(
<nav class="navbar fixed-top navbar-expand-lg navbar-dark bg-dark fixed-top">
<div class="container">
<a class="navbar-brand" href="index.php">L'amour</a>
<button class="navbar-toggler navbar-toggler-right" type="button" data-toggle="collapse" data-target="#navbarResponsive" aria-controls="navbarResponsive" aria-expanded="false" aria-label="Toggle navigation">
<span class="navbar-toggler-icon"></span>
</button>
<div class="collapse navbar-collapse" id="navbarResponsive">
<ul class="navbar-nav ml-auto">
<li class="nav-item float-left">
<a class="nav-link float-left" href="order.php">Contact Us</a>
</li>
<li class="nav-item float-left">
<a class="nav-link float-left" href="order.php">Testimonial</a>
</li>
<li class="nav-item">
<input class='form-control' type='text' name='search' placeholder='Search for wedding...'>
</li>
<li class="nav-item float-right">
<a class="nav-link float-right" href="order.php">Order Wesbite</a>
</li>
<li class="nav-item dropdown float-right">
<a class="nav-link dropdown-toggle" href="#" id="navbarDropdownBlog" data-toggle="dropdown" aria-haspopup="true" aria-expanded="false">
Account
</a>
<div class="dropdown-menu dropdown-menu-right" aria-labelledby="navbarDropdownBlog">
<a class="dropdown-item" href="signIn.php">Login</a>
<a class="dropdown-item" href="sign-up">Sign up</a>
<a class="dropdown-item" href="homeUser.php">Account details</a>
<a class="dropdown-item" href="logout.php">Logout</a>
</div>
</li>
</ul>
</div>
</div>
</nav>
You can use the following solution:
<link href="https://maxcdn.bootstrapcdn.com/bootstrap/4.0.0/css/bootstrap.min.css" rel="stylesheet"/>
<nav class="navbar fixed-top navbar-expand-lg navbar-dark bg-dark fixed-top">
<div class="container">
<a class="navbar-brand" href="index.php">L'amour</a>
<button class="navbar-toggler navbar-toggler-right" type="button" data-toggle="collapse" data-target="#navbarResponsive" aria-controls="navbarResponsive" aria-expanded="false" aria-label="Toggle navigation">
<span class="navbar-toggler-icon"></span>
</button>
<div class="collapse navbar-collapse" id="navbarResponsive">
<!-- left menu -->
<ul class="navbar-nav">
<li class="nav-item">
<a class="nav-link" href="order.php">Contact Us</a>
</li>
<li class="nav-item">
<a class="nav-link" href="order.php">Testimonial</a>
</li>
<li class="nav-item">
<input class='form-control' type='text' name='search' placeholder='Search for wedding...'>
</li>
</ul>
<!-- right menu -->
<ul class="navbar-nav ml-auto">
<li class="nav-item">
<a class="nav-link" href="order.php">Order Wesbite</a>
</li>
<li class="nav-item dropdown">
<a class="nav-link dropdown-toggle" href="#" id="navbarDropdownBlog" data-toggle="dropdown" aria-haspopup="true" aria-expanded="false">
Account
</a>
<div class="dropdown-menu dropdown-menu-right" aria-labelledby="navbarDropdownBlog">
<a class="dropdown-item" href="signIn.php">Login</a>
<a class="dropdown-item" href="sign-up">Sign up</a>
<a class="dropdown-item" href="homeUser.php">Account details</a>
<a class="dropdown-item" href="logout.php">Logout</a>
</div>
</li>
</ul>
</div>
</div>
</nav>
Separate menu into two ul left and right use class mr-auto for left and my-0 for the right one
<nav class="navbar fixed-top navbar-expand-lg navbar-dark bg-dark fixed-top">
<div class="container">
<a class="navbar-brand" href="index.php">L'amour</a>
<button class="navbar-toggler navbar-toggler-right" type="button" data-toggle="collapse" data-target="#navbarResponsive" aria-controls="navbarResponsive" aria-expanded="false" aria-label="Toggle navigation">
<span class="navbar-toggler-icon"></span>
</button>
<div class="collapse navbar-collapse" id="navbarResponsive">
<ul class="navbar-nav mr-auto">
<li class="nav-item float-left">
<a class="nav-link float-left" href="order.php">Contact Us</a>
</li>
<li class="nav-item float-left">
<a class="nav-link float-left" href="order.php">Testimonial</a>
</li>
<li class="nav-item">
<input class='form-control' type='text' name='search' placeholder='Search for wedding...'>
</li>
</ul>
<ul class="navbar-nav my-lg-0">
<li class="nav-item ">
<a class="nav-link float-right" href="order.php">Order Wesbite</a>
</li>
<li class="nav-item dropdown float-right">
<a class="nav-link dropdown-toggle" href="#" id="navbarDropdownBlog" data-toggle="dropdown" aria-haspopup="true" aria-expanded="false">
Account
</a>
<div class="dropdown-menu dropdown-menu-right" aria-labelledby="navbarDropdownBlog">
<a class="dropdown-item" href="signIn.php">Login</a>
<a class="dropdown-item" href="sign-up">Sign up</a>
<a class="dropdown-item" href="homeUser.php">Account details</a>
<a class="dropdown-item" href="logout.php">Logout</a>
</div>
</li>
</ul>
</div>
</div>
</nav>
https://jsfiddle.net/raj_mutant/v00oy85h/
To achieve this you should wrap your nav items in different ul
<script src="https://ajax.googleapis.com/ajax/libs/jquery/2.1.1/jquery.min.js"></script><script src="https://maxcdn.bootstrapcdn.com/bootstrap/4.0.0/js/bootstrap.min.js"></script>
<link href="https://maxcdn.bootstrapcdn.com/bootstrap/4.0.0/css/bootstrap.min.css" rel="stylesheet"/>
<nav class="navbar fixed-top navbar-expand-lg navbar-dark bg-dark fixed-top">
<div class="container">
<a class="navbar-brand" href="index.php">L'amour</a>
<button class="navbar-toggler navbar-toggler-right" type="button" data-toggle="collapse" data-target="#navbarResponsive" aria-controls="navbarResponsive" aria-expanded="false" aria-label="Toggle navigation">
<span class="navbar-toggler-icon"></span>
</button>
<div class="collapse navbar-collapse" id="navbarResponsive">
<ul class="navbar-nav">
<li class="nav-item float-left">
<a class="nav-link float-left" href="order.php">Contact Us</a>
</li>
<li class="nav-item float-left">
<a class="nav-link float-left" href="order.php">Testimonial</a>
</li>
<li class="nav-item">
<input class="form-control" type="text" name="search" placeholder="Search for wedding...">
</li>
</ul>
<ul class="navbar-nav ml-auto">
<li class="nav-item ">
<a class="nav-link" href="order.php">Order Wesbite</a>
</li>
<li class="nav-item dropdown">
<a class="nav-link dropdown-toggle" href="#" id="navbarDropdownBlog" data-toggle="dropdown" aria-haspopup="true" aria-expanded="false">
Account
</a>
<div class="dropdown-menu dropdown-menu-right" aria-labelledby="navbarDropdownBlog">
<a class="dropdown-item" href="signIn.php">Login</a>
<a class="dropdown-item" href="sign-up">Sign up</a>
<a class="dropdown-item" href="homeUser.php">Account details</a>
<a class="dropdown-item" href="logout.php">Logout</a>
</div>
</li>
</ul>
</div>
</div>
</nav>
Note: View the snippet in full screen
You are forgetting to use clearfix class to parent class that contain float-left or float-right class