Auto adjusting form using margin - html

Question

I'm using margins for my form but when I am testing the responsive layout the distance between the navigation bar increases if the screen width is a greater size. Therefore, I have also tried auto height but it still has a big gap between the navigation bar and the form.
I have also tried #media screen.
I had help yesterday with a similar problem to this, but now I'm encountering another one as its not with the footer but with the form itself.
I would kindly like to ask for help, and if you find a solution explain the changes so I can also learn from it! Kindest regards, Caelan : ).
body {
background-color: black;
}
/* Announcment bar */
.alert {
padding: 20px;
background-color: #2a7a85;
color: white;
}
.closebtn {
margin-left: 15px;
color: white;
font-weight: bold;
float: right;
font-size: 22px;
line-height: 20px;
cursor: pointer;
transition: 0.3s;
}
.closebtn:hover {
color: black;
}
body {
margin: 0;
}
/* Navigation bar */
ul.topnav {
list-style-type: none;
margin: 0;
padding: 0;
overflow: hidden;
background-color: rgb(248, 248, 248);
}
ul.topnav li {
float: left;
}
ul.topnav li a {
display: block;
color: black;
text-align: center;
font-weight: bold;
padding: 25px 32px;
text-decoration: none;
}
ul.topnav li a:hover:not(.active) {
background-color: rgb(55, 81, 165);
}
ul.topnav li a.active {
background-color: #0cc0d8;
}
ul.topnav li.right {
float: right;
}
#media screen and (max-width: 600px) {
ul.topnav li.right,
ul.topnav li {
float: none;
}
}
/* On smaller screens, decrease text size */
#media only screen and (max-width: 300px) {
.text {
font-size: 11px;
}
}
/* Homepage button */
.glow-on-hover {
width: 220px;
height: 35px;
border: none;
outline: none;
color: rgb(0, 0, 0);
font-weight: bold;
font-size: 20px;
background: #111;
cursor: pointer;
position: relative;
z-index: 0;
border-radius: 10px;
}
.glow-on-hover:before {
content: "";
background: linear-gradient(
45deg,
#ff0000,
#ff7300,
#fffb00,
#48ff00,
#00ffd5,
#002bff,
#7a00ff,
#ff00c8,
#ff0000
);
position: absolute;
top: -2px;
left: -2px;
background-size: 400%;
z-index: -1;
filter: blur(5px);
width: calc(100% + 4px);
height: calc(100% + 4px);
animation: glowing 20s linear infinite;
opacity: 0;
transition: opacity 0.3s ease-in-out;
border-radius: 10px;
}
.glow-on-hover:active {
color: #000;
}
.glow-on-hover:active:after {
background: transparent;
}
.glow-on-hover:hover:before {
opacity: 1;
}
.glow-on-hover:after {
z-index: -1;
content: "";
position: absolute;
width: 100%;
height: 100%;
background: rgb(11, 78, 223);
left: 0;
top: 0;
border-radius: 10px;
}
#keyframes glowing {
0% {
background-position: 0 0;
}
50% {
background-position: 400% 0;
}
100% {
background-position: 0 0;
}
}
/* kipplo heading on homepage */
h1 {
font-size: 10vw;
margin: 0;
padding: 0;
font-family: "Courier New", Courier, monospace;
color: blue;
word-wrap: break-word;
text-align: center;
}
/* for the heading and the button alignment*/
.container {
display: flex;
flex-direction: column;
height: 100vh;
}
.btn-centering {
flex-grow: 1;
display: flex;
flex-direction: column;
align-items: center;
justify-content: center;
}
/* product cards*/
h3 {
text-align: center;
font-size: 30px;
margin: 0;
padding-top: 10px;
}
a {
text-decoration: none;
}
.gallery {
display: flex;
flex-wrap: wrap;
width: 100%;
justify-content: center;
align-items: center;
margin: 50px 0;
}
.content {
width: 24%;
margin: 15px;
box-sizing: border-box;
float: left;
text-align: center;
border-radius: 10px;
border-top-right-radius: 10px;
border-bottom-right-radius: 10px;
padding-top: 10px;
box-shadow: 0 0 10px rgba(0, 0, 0, 0.1);
transition: 0.4s;
background-color: whitesmoke;
}
.content:hover {
box-shadow: 0 0 11px rgb(0, 217, 255);
transform: translate(0px, -8px);
transition: 0.6s;
}
.productcard-image {
width: 200px;
height: 200px;
text-align: center;
margin: 0 auto;
display: block;
}
p {
text-align: center;
color: #b2bec3;
padding: 0 8px;
}
h6 {
font-size: 26px;
text-align: center;
color: #222f3e;
margin: 0;
}
.product-card {
list-style-type: none;
display: flex;
justify-content: center;
align-items: center;
padding: 0px;
}
.productcard-list {
padding: 5px;
}
.fa {
color: #ff9f43;
font-size: 26px;
transition: 0.4s;
}
.fa:hover {
transform: scale(1.3);
transition: 0.6s;
}
.productcardbutton {
text-align: center;
font-size: 24px;
color: #fff;
width: 100%;
padding: 15px;
border: 0px;
outline: none;
cursor: pointer;
margin-top: 5px;
border-bottom-right-radius: 10px;
border-bottom-left-radius: 10px;
}
.buy-1 {
background-color: #2183a2;
}
.buy-2 {
background-color: #3b3e6e;
}
.buy-3 {
background-color: #0b0b0b;
}
#media (max-width: 1000px) {
.content {
width: 46%;
}
}
#media (max-width: 750px) {
.content {
width: 100%;
}
}
/* Footer */
.footer__container {
background-color: #141414;
padding: 5rem 0;
display: flex;
flex-direction: column;
justify-content: center;
align-items: center;
}
#footer__logo {
color: #fff;
display: flex;
align-items: center;
cursor: pointer;
text-decoration: none;
font-size: 2rem;
}
.footer__links {
width: 100%;
max-width: 1000px;
display: flex;
justify-content: center;
}
.footer__link--wrapper {
display: flex;
}
.footer__link--items {
display: flex;
flex-direction: column;
align-items: flex-start;
margin: 16px;
text-align: left;
width: 160px;
box-sizing: border-box;
}
.footer__link--items h2 {
margin-bottom: 16px;
}
.footer__link--items > h2 {
color: #fff;
}
.footer__link--items a {
color: #fff;
text-decoration: none;
margin-bottom: 0.5rem;
}
.footer__link--items a:hover {
color: #e9e9e9;
transition: 0.3s ease-out;
}
/* Social Icons */
.social__icon--link {
color: #fff;
font-size: 24px;
}
.social__media {
max-width: 1000px;
width: 100%;
}
.social__media--wrap {
display: flex;
justify-content: space-between;
align-items: center;
width: 90%;
max-width: 1000px;
margin: 40px auto 0 auto;
}
.website__rights {
color: #fff;
}
#media screen and (max-width: 820px) {
.footer__links {
padding-top: 2rem;
}
#footer__logo {
margin-bottom: 2rem;
}
.website__rights {
padding: 2rem;
}
.footer__link--wrapper {
flex-direction: column;
}
.social__media--wrap {
flex-direction: column;
}
}
#media screen and (max-width: 480px) {
.footer__link--items {
margin: 0;
padding: 10px;
width: 100%;
}
}
/* Text above the form*/
/* Feedback form*/
.form1 {
display: flex;
flex-direction: column;
align-items: center;
width: 500px;
margin: 15vh auto;
margin-top: -200px;
height: auto;
border-radius: 15px;
border: none;
box-shadow: 0 0 15px rgb(24, 143, 190);
}
form {
display: flex;
flex-direction: column;
align-items: center;
width: 90%;
}
input {
width: 100%;
margin: 5px 0;
height: 35px;
font-size: 17px;
text-align: center;
outline: none;
border-radius: 15px;
border: none;
background: rgb(235, 228, 228);
}
textarea {
width: 100%;
margin: 5px 0;
font-size: 17px;
text-align: center;
outline: none;
border-radius: 15px;
border: none;
background: rgb(235, 228, 228);
}
input[type="submit"] {
margin: 10px auto;
width: 120px;
background: rgb(24, 143, 190);
color: white;
cursor: pointer;
}
input[type="submit"]:hover {
background: rgb(19, 41, 238);
}
#media screen and (max-width: 600px) {
.form1 {
width: 90%;
margin-top:-250px;
height: auto;
}
}
h2 {
color: #00ffd5;
font-size: 30px;
}
p4 {
color: #00ffd5;
font-size: 20px;
}
<!DOCTYPE html>
<html>
<head>
<meta name="viewport" content="width=device-width, initial-scale=1.0" />
<link rel="icon" href="img/icon.png" />
<link rel="stylesheet" href="styles.css" />
<title>Contact Us</title>
</head>
<body>
<!-- Alert bar -->
<div class="container">
<div class="alert">
<span
class="closebtn"
onclick="this.parentElement.style.display='none';"
>×</span
>
<center>
<strong>DEALS NOW ON!</strong> Upto 30% discounts this christmas
</center>
</div>
<!-- Navigation bar -->
<ul class="topnav">
<li><img src="img/logo.png" /></li>
<li>Home</li>
<li>Products</li>
<li><a class="active" href="contactus.html">Contact Us</a></li>
<li class="right">About Us</li>
</ul>
</div>
<!-- Form -->
<div class="form1">
<h2>Contact Us!</h2>
<p4>Typical Replies Within 24hrs!</p4>
<br />
<form action="">
<input
type="email"
name="email"
id="email"
placeholder="Enter your email"
/>
<input
type="text"
name="name"
id="name"
placeholder=" Enter your name"
/>
<textarea
name="message"
id="message"
cols="30"
rows="10"
placeholder="Enter your message here"
></textarea>
<input type="submit" value="Send" />
</form>
</div>
</div>
<!-- Footer -->
<div class="footer__container">
<div class="footer__links">
<div class="footer__link--wrapper">
<div class="footer__link--items">
About Us
</div>
<div class="footer__link--items">
Contact Us
</div>
</div>
<div class="footer__link--wrapper">
<div class="footer__link--items">
Youtube
</div>
<div class="footer__link--items">
TikTok
</div>
</div>
</div>
<section class="social__media">
<div class="social__media--wrap">
<div class="footer__logo">
<a href="index.html">
<img src="img/logo2.png" id="footer__logo"
/></a>
</div>
<p class="website__rights">
© KIPPLO.CO.UK PROTOTYPE 2022. All rights reserved
</p>
<div class="social__icons"></div>
</div>
</[![section][1]][1]>
</div>
</body>
</html>

Answer 1

I analyzed your code. You have just to remove the height: 100vh from your .container.
The next step is to remove the margin-top: -250px from your .form1. then it should look good.
Bonus Tip: the unit vh stands for viewport-height (browser height). so 100vh is 100% of the viewport height.