Issues with html (elements have slid down page)

Question

I was programming this on my laptop and for some reason input section has slide down the page and i'm wondering why and what do i need to do to fix it? Thanks for you're help
https://code.sololearn.com/WT5qX8KoDGG6

Answer 1

Here is a fine css
Copy paste that
body, html {
height: 100%;
width:100%;
background:gray;
}
* {
margin: 0px;
padding: 0px;

}

#Backing {
width: 35%;
max-height: 100%;
height:100%;
margin: 0px;
padding: 0px;
background-color: black;
margin-left:40%;
padding-top:35%;
}
#Backing *{

max-width:100%;

}

Answer 2

Thank you 😀

Answer 3

Ollie Q Welcome😄