HTTP/CSS Website completely different from local to host!

This is my first time coding anything and i feel like ive done a good job, but when i upload it to infinityfree and go to my website the page looks completely different…
I have no idea what could cause this, but heres locav vs host pictures:

also the line going across the middle just showed up from nowhere when i put the killfeed in (cs:go website)

you missed the most basic types of things (like html structure)

please copy your source code and paste/validate it here

some sample of your code

<head>
some code...
<head>  <-- error
some code....
</header>  <-- error
some code....
<header id="header"> <-- error
more code....
</html> <-- error
<link rel="shortcut icon" href="favicon.ico" type="image/x-icon"> <-- error
<html >  <-- error
<head> <-- error
  <meta charset="UTF-8"> <-- error
  <title>e k s d e e</title> <-- error
  <link rel="icon" type="image/ico" src="icon.ico"> <-- error
  
<link rel="stylesheet" href="https://cdnjs.cloudflare.com/ajax/libs/meyer-reset/2.0/reset.min.css">
<link rel="stylesheet" href="css/style.css"> <-- error

</head>	<-- error 
<body> <-- error
<audio src="music.mp3" autoplay="autoplay" loop="">
</body> <-- error

</html><-- error