responsive position of a form - html

Question

I am trying to position my form box. To see where I was going I just made some inline style. It is also looking like I want on the desktop version, but when I see it on mobile version the form box is out of the picture.
If I made the Inline CSS in an external stylesheet, and made a Mediaquery, it would not be the correct way to do it, would it? For me it seems like bad practice?
<!-- Content -->
<div class="container-fluid">
<div class="row">
<div class="col-lg-12" style="width:25%; top: 70px; left: 1000px;">
#Umbraco.RenderMacro("Ebook")
</div>
</div>
</div>
<div class="sign-up">
<form id="ebog-trin-for-trin">
<div class="form-group">
<label class="sr-only" for="name">Navn</label>
<input type="text" class="form-control" id="name" name="name" placeholder="Navn" required/>
</div>
<div class="form-group">
<label class="sr-only" for="lastname">Efternavn</label>
<input type="text" class="form-control" id="lastname" name="lastname" placeholder="Efternavn" required/>
</div>
<div class="form-group">
<label class="sr-only" for="email">E-mail</label>
<input type="email" class="form-control" id="email" name="email" placeholder="E-mail" required />
</div>
<div class="form-group">
<label class="sr-only" for="phone">Telefon</label>
<input type="text" class="form-control" id="phone" name="phone" placeholder="Telefonnummer" required />
</div>
<div class="form-group">
<label class="sr-only" for="company">Virksomhed</label>
<input type="text" class="form-control" id="company" name="company" placeholder="Virksomhed" required/>
</div>
<input type="text" id="Channel" name="Channel" style="display: none;" />
<input type="text" id="Campaign" name="Campaign" style="display: none;" />
<button type="submit" class="btn btn-default active">Hent E-bogen</button>
</form>
</div>

Answer 1

Here's an example with the form floating to the right for larger screens, and showing full-width for smaller screens.
.floating-form {
background: #eee;
float: right;
padding: 20px 0;
width: 320px;
}
#media (max-width: 479px) {
.floating-form {
float: none;
width: auto;
}
}
<link href="https://maxcdn.bootstrapcdn.com/bootstrap/3.3.7/css/bootstrap.min.css" rel="stylesheet" />
<div class="floating-form">
<div class="container-fluid">
<div class="row">
<div class="sign-up col-xs-12">
<form id="ebog-trin-for-trin">
<div class="form-group">
<label class="sr-only" for="name">Navn</label>
<input type="text" class="form-control" id="name" name="name" placeholder="Navn" required/>
</div>
<div class="form-group">
<label class="sr-only" for="lastname">Efternavn</label>
<input type="text" class="form-control" id="lastname" name="lastname" placeholder="Efternavn" required/>
</div>
<div class="form-group">
<label class="sr-only" for="email">E-mail</label>
<input type="email" class="form-control" id="email" name="email" placeholder="E-mail" required />
</div>
<div class="form-group">
<label class="sr-only" for="phone">Telefon</label>
<input type="text" class="form-control" id="phone" name="phone" placeholder="Telefonnummer" required />
</div>
<div class="form-group">
<label class="sr-only" for="company">Virksomhed</label>
<input type="text" class="form-control" id="company" name="company" placeholder="Virksomhed" required/>
</div>
<input type="text" id="Channel" name="Channel" style="display: none;" />
<input type="text" id="Campaign" name="Campaign" style="display: none;" />
<button type="submit" class="btn btn-default active">Hent E-bogen</button>
</form>
</div>
</div>
</div>
</div>

Answer 2

<!-- Content -->
<div class="container-fluid">
<div class="row">
<div class="col-xs-6 col-md-6 col-lg-6">
#Umbraco.RenderMacro("Ebook")
</div>
<div class="sign-up col-xs-6 col-md-6 col-lg-6">
<form id="ebog-trin-for-trin">
<div class="form-group">
<label class="sr-only" for="name">Navn</label>
<input type="text" class="form-control" id="name" name="name" placeholder="Navn" required/>
</div>
<div class="form-group">
<label class="sr-only" for="lastname">Efternavn</label>
<input type="text" class="form-control" id="lastname" name="lastname" placeholder="Efternavn" required/>
</div>
<div class="form-group">
<label class="sr-only" for="email">E-mail</label>
<input type="email" class="form-control" id="email" name="email" placeholder="E-mail" required />
</div>
<div class="form-group">
<label class="sr-only" for="phone">Telefon</label>
<input type="text" class="form-control" id="phone" name="phone" placeholder="Telefonnummer" required />
</div>
<div class="form-group">
<label class="sr-only" for="company">Virksomhed</label>
<input type="text" class="form-control" id="company" name="company" placeholder="Virksomhed" required/>
</div>
<input type="text" id="Channel" name="Channel" style="display: none;" />
<input type="text" id="Campaign" name="Campaign" style="display: none;" />
<button type="submit" class="btn btn-default active">Hent E-bogen</button>
</form>
</div>
</div>
</div>
Fiddle
This Will Useful for you..