Can't place box above background image - html

Question

The problem is the about section. I want the home_about_box to be on-top of a background image. Here is a quick sketch:
I am very new to this, so if you have the fix, I would appreciate both getting the code, and a good explanation on what I have done wrong.
Thanks, and don´t be shy to criticise my code, as long as it´s constructive criticism!
#import url('https://fonts.googleapis.com/css?family=Lato:300,400,700,900');
* {
box-sizing: border-box;
transition: all ease-in-out 250ms;
}
body {
margin: 0;
font-family: "Lato", sans-serif;
text-align: center;
}
img {
max-width: 100%;
height: auto;
padding: 1em 0 1em;
background-size: cover;
}
.container {
width: 100%;
margin: 0 auto;
}
/* Header
========= */
header {
position: absolute;
width: 100%;
}
nav ul {
margin: 0;
padding: 1em 0;
list-style: none;
}
nav li {
display: inline-block;
margin: .5em
}
nav a {
font-weight: 900;
text-decoration: none;
text-transform: uppercase;
font-size: .9rem;
padding: .5em;
color: #FFF;
}
nav a:hover,
nav a:focus {
color: #DDD;
}
#media (min-width: 60rem) {
.logo {
float: left;
text-align: center;
align-content: center;
}
nav {
float: right;
text-align: center;
margin-right: 1em;
}
}
/* Buttons
========== */
.button_top {
display: inline-block;
font-size: 1.3rem;
text-decoration: none;
text-transform: uppercase;
border-width: 2px;
border-style: solid;
border-color: #174FC1;
padding: .5em 1em;
color: #FFF;
}
.button_top:hover,
.button_top:focus {
background: #174FC1;
color: #FFF;
}
.button_dark {
display: inline-block;
font-size: 1.3rem;
text-decoration: none;
text-transform: uppercase;
border-width: 2px;
border-style: solid;
border-color: #FFF;
padding: .5em 1em;
color: #FFF;
margin-bottom: 1em;
}
.button_dark:hover,
.button_dark:focus {
background: #FFF;
color: #000;
}
#media (min-width: 25rem) {
.button_top {
font-size: 1.7rem;
padding: .3em 1em
}
}
#media (min-width: 60rem) {
.button_top {
font-size: 2.4rem;
padding: .3em 1em;
margin-top: -1em;
}
}
#media (min-width: 25rem) {
.button_dark {
font-size: 1.7rem;
padding: .3em 1em
}
}
#media (min-width: 60rem) {
.button_dark {
font-size: 2rem;
padding: .3em 1em;
}
}
.clearfix::after,
section::after,
footer::after {
content: "";
display: block;
clear: both;
}
/* Typography
========= */
.title {
font-size: 2rem;
margin-bottom: 1.6em;
margin-top: 5em;
}
.title span {
font-weight: 300;
display: block;
font-size: 1.3rem;
}
.title-cta {
margin: 0 0 1em;
}
#media (min-width: 60rem) {
.title {
font-size: 4rem;
margin-top: 1.5em;
}
}
h1 {
font-weight: 800;
margin-top: 0;
}
.unstyled-list {
margin: 0;
padding: 1.3em;
list-style-type: none;
text-align: left;
}
/* Home.hero
========= */
.home-hero {
background-image: url(https://i.imgur.com/yUFKqAe.jpg);
background-size: cover;
background-position: center;
padding: 1em;
color: #FFF;
width: 100%;
height: 100vh;
}
#media (min-width: 25rem) {
.home-hero {
width: 100%;
height: 100vh;
}
}
#media (min-width: 60rem) {
.home-hero {
width: 100%;
height: auto;
}
}
#media (min-height: 30rem) {
.home-hero {
width: 100%;
height: 100vh;
}
}
/*Home About */
.home_about_box {
background-color: #232323;
font-size: .8em;
padding: 4em;
outline: 2px solid #174fc1;
outline-offset: -3em;
color: #FFF;
position: relative
}
.home_about_box h1 {
color: #174fc1;
position: absolute;
left: 50%;
transform: translateX(-50%);
top: 1.3em;
background: #232323;
padding: 0 0.5em
}
#media (min-width: 25rem) {
h1 {
font-size: 1.6rem;
}
.home_about_box h1 {
top: 1.3rem;
}
}
#media (min-width: 60rem) {
h1 {
font-size: 1.2rem;
}
.about.bg {
background-image: url(https://i.imgur.com/aTF2hwR.jpg);
padding: 5em;
}
.home_about_box {
background-color: #232323;
font-size: 0.8em;
padding: 4em;
outline: 2px solid #174fc1;
outline-offset: -3em;
color: #fff;
z-index: 101;
width: 25em;
margin-left: 52em;
}
.home_about_box h1 {
top: 1.5rem;
}
}
/* portfolio
*/
.portfolio_home {
margin: 1.8em 0 0;
background-size: cover;
}
.portfolio_home h1 {
color: #174FC1;
font-size: 3em;
margin: auto;
padding: 0 0 .3em 0;
}
.port-item {
margin: 0;
position: relative;
}
.port-item img {
display: block;
}
.port-desc {
position: absolute;
z-index: 100;
bottom: 0em;
left: 0em;
right: 0em;
color: #FFF;
background: rgba(0, 0, 0, .75);
padding-bottom: 1em;
padding-top: 1em;
}
.port-desc p {
margin: .5em;
background-size: 100% 100%;
}
#media (min-width: 40rem) {
.port-item {
width: 50%;
float: left;
}
}
#media (min-width: 60rem) {
.port-item {
width: 33.3333334%;
float: left;
overflow: hidden
}
.port-desc {
transform: translateY(150%);
}
.port-item:hover .port-desc {
transform: translateY(0%)
}
.port-item img {
max-width: 100%;
height: auto;
padding: 0 0 0;
background-size: cover;
}
}
/* CTA
*/
.cta {
background-color: #174fc1;
padding: 0.1em;
}
.cta h1 {
margin-top: 1em;
color: #FFF
}
/* Footer */
footer {
background: #232323;
color: #FFF;
}
<!doctype html>
<html>
<head>
<meta charset="UTF-8">
<meta name="viewport" content="width=device-width, initial-scale=1">
<title>Tobias Barsnes</title>
<link href="home.css" rel="stylesheet" type="text/css">
<script src="https://ajax.googleapis.com/ajax/libs/jquery/3.2.1/jquery.min.js"></script>
<script>
$(document).ready(function() {
$("a").on('click', function(event) {
if (this.hash !== "") {
event.preventDefault();
var hash = this.hash;
$('html, body').animate({
scrollTop: $(hash).offset().top
}, 900, function() {
window.location.hash = hash;
});
}
});
});
</script>
</head>
<body>
<header>
<img class="logo" src="https://i.imgur.com/o3Mmqvq.png" width="100" height="89" alt="">
<nav>
<ul>
<li>Home</li>
<li>Portfolio</li>
<li>Contact</li>
</ul>
</nav>
</header>
<section class="home-hero">
<div class="container">
<h1 class="title">Tobias Barsnes
<span>Portfolio</span>
</h1>
Take a look
</div>
</section>
<section class="home.about">
<div class="about.bg">
<div class="home_about_box">
<h1>About Myself</h1>
<p>I am a 16 year old boy from Norway. My whole life I have been interested in graphical design, and I am currently studying "Medium and Communications".</p>
<p>A big goal for me is to get a job that has to do with graphical design. I have experience dating all the way back to 2012, but I am still in the "learning phase".</p>
</div>
</div>
</section>
<section class="portfolio_home" id="portfolio">
<h1>Some of my work</h1>
<figure class="port-item">
<!-- Portfolio 1 -->
<img src="https://i.imgur.com/eBRYWII.png" alt="portfolio item" />
<figcaption class="port-desc">
<p>Geofilters</p>
</figcaption>
</figure>
<!-- Portfolio 2 -->
<figure class="port-item">
<img src="https://i.imgur.com/gAfgliA.png" alt="portfolio item" />
<figcaption class="port-desc">
<p>Quixz eSports</p>
</figcaption>
</figure>
<!-- Portfolio 3 -->
<figure class="port-item">
<img src="https://i.imgur.com/IjoGmUT.png" alt="portfolio item" />
<figcaption class="port-desc">
<p>3D Renders</p>
</figcaption>
</figure>
<!-- Portfolio 4 -->
<figure class="port-item">
<img src="https://i.imgur.com/4zymXa8.png" alt="portfolio item" />
<figcaption class="port-desc">
<p>Backgrounds</p>
</figcaption>
</figure>
</section>
<section class="cta">
<div class="container">
<h1 class="title title-cta">Want to see more?
<span>Then what are you waiting for?</span>
</h1>
See More
</div>
</section>
<footer>
<section class="home-foot">
<ul class="unstyled-list">
<li> <strong>Website crafted by Tobias Barsnes</strong></li>
</ul>
</section>
</footer>
</body>
</html>

Answer 1

you just need to change this line
<div class="about.bg">
to this
<div class="about bg">
and it will work,
Note:
<div class="class1.text"></div>
is incorrect syntax, you can write it like this
<div class="class1-text"></div>
if u apply your css like
.class1.text{}
it means you have 2 classes in a div and u want to select them like
my above selector will select this element
check below code in full preview mode
<!doctype html>
<html>
<head>
<meta charset="UTF-8">
<meta name="viewport" content="width=device-width, initial-scale=1">
<title>Tobias Barsnes</title>
<style>
#import
url('https://fonts.googleapis.com/css?family=Lato:300,400,700,900');
* {
box-sizing: border-box;
transition: all ease-in-out 250ms;
}
body {
margin: 0;
font-family: "Lato", sans-serif;
text-align: center;
}
img {
max-width: 100%;
height: auto;
padding: 1em 0 1em;
background-size: cover;
}
.container {
width: 100%;
margin: 0 auto;
}
/* Header
========= */
header {
position: absolute;
width: 100%;
}
nav ul {
margin: 0;
padding: 1em 0;
list-style: none;
}
nav li {
display: inline-block;
margin: .5em
}
nav a {
font-weight: 900;
text-decoration: none;
text-transform: uppercase;
font-size: .9rem;
padding: .5em;
color: #FFF;
}
nav a:hover,
nav a:focus{
color: #DDD;
}
#media (min-width: 60rem) {
.logo{
float: left;
text-align: center;
align-content: center;
}
nav{
float: right;
text-align: center;
margin-right: 1em;
}
}
/* Buttons
========== */
.button_top {
display: inline-block;
font-size: 1.3rem;
text-decoration: none;
text-transform: uppercase;
border-width: 2px;
border-style: solid;
border-color: #174FC1;
padding: .5em 1em;
color: #FFF;
}
.button_top:hover,
.button_top:focus {
background: #174FC1;
color: #FFF;
}
.button_dark {
display: inline-block;
font-size: 1.3rem;
text-decoration: none;
text-transform: uppercase;
border-width: 2px;
border-style: solid;
border-color: #FFF;
padding: .5em 1em;
color: #FFF;
margin-bottom: 1em;
}
.button_dark:hover,
.button_dark:focus {
background: #FFF;
color: #000;
}
#media (min-width: 25rem) {
.button_top {
font-size: 1.7rem;
padding: .3em 1em
}
}
#media (min-width: 60rem) {
.button_top {
font-size: 2.4rem;
padding: .3em 1em;
margin-top: -1em;
}
}
#media (min-width: 25rem) {
.button_dark {
font-size: 1.7rem;
padding: .3em 1em
}
}
#media (min-width: 60rem) {
.button_dark {
font-size: 2rem;
padding: .3em 1em;
}
}
.clearfix::after,
section::after,
footer::after{
content: "";
display: block;
clear: both;
}
/* Typography
========= */
.title {
font-size: 2rem;
margin-bottom: 1.6em;
margin-top: 5em;
}
.title span {
font-weight: 300;
display: block;
font-size: 1.3rem;
}
.title-cta {
margin: 0 0 1em;
}
#media (min-width: 60rem) {
.title{
font-size: 4rem;
margin-top: 1.5em;
}
}
h1 {
font-weight: 800;
margin-top: 0;
}
.unstyled-list {
margin: 0;
padding: 1.3em;
list-style-type: none;
text-align: left;
}
/* Home.hero
========= */
.home-hero {
background-image: url(https://i.imgur.com/yUFKqAe.jpg);
background-size: cover;
background-position: center;
padding: 1em;
color: #FFF;
width: 100%;
height: 100vh;
}
#media (min-width: 25rem) {
.home-hero{
width: 100%;
height: 100vh;
}
}
#media (min-width: 60rem) {
.home-hero{
width: 100%;
height: auto;
}
}
#media (min-height: 30rem) {
.home-hero{
width: 100%;
height: 100vh;
}
}
/*Home About */
.home_about_box {
background-color: #232323;
font-size: .8em;
padding: 4em;
outline: 2px solid #174fc1;
outline-offset: -3em;
color: #FFF;
position: relative
}
.home_about_box h1 {
color: #174fc1;
position: absolute;
left: 50%;
transform: translateX(-50%);
top: 1.3em;
background: #232323;
padding: 0 0.5em
}
#media (min-width: 25rem) {
h1 {
font-size: 1.6rem;
}
.home_about_box h1 {
top: 1.3rem;
}
}
#media (min-width: 60rem) {
h1 {
font-size: 1.2rem;
}
.about.bg {
background-image: url(https://i.imgur.com/aTF2hwR.jpg);
padding: 5em;
}
.home_about_box {
background-color: #232323;
font-size: 0.8em;
padding: 4em;
outline: 2px solid #174fc1;
outline-offset: -3em;
color: #fff;
z-index: 101;
width: 25em;
margin-left: 52em;
}
.home_about_box h1 {
top: 1.5rem;
}
}
/* portfolio
*/
.portfolio_home {
margin: 1.8em 0 0;
background-size: cover;
}
.portfolio_home h1 {
color: #174FC1;
font-size: 3em;
margin: auto;
padding: 0 0 .3em 0;
}
.port-item {
margin: 0;
position: relative;
}
.port-item img {
display: block;
}
.port-desc {
position: absolute;
z-index: 100;
bottom: 0em;
left: 0em;
right: 0em;
color: #FFF;
background: rgba(0,0,0,.75);
padding-bottom: 1em;
padding-top: 1em;
}
.port-desc p {
margin: .5em;
background-size: 100% 100%;
}
#media (min-width: 40rem) {
.port-item {
width: 50%;
float: left;
}
}
#media (min-width: 60rem) {
.port-item {
width: 33.3333334%;
float: left;
overflow: hidden
}
.port-desc {
transform: translateY(150%);
}
.port-item:hover .port-desc {
transform: translateY(0%)
}
.port-item img {
max-width: 100%;
height: auto;
padding: 0 0 0;
background-size: cover;
}
}
/* CTA
*/
.cta{
background-color: #174fc1;
padding: 0.1em;
}
.cta h1 {
margin-top: 1em;
color: #FFF
}
/* Footer */
footer {
background: #232323;
color: #FFF;
}
</style>
<script src="https://ajax.googleapis.com/ajax/libs/jquery/3.2.1/jquery.min.js"></script>
<script>
$(document).ready(function(){
$("a").on('click', function(event) {
if (this.hash !== "") {
event.preventDefault();
var hash = this.hash;
$('html, body').animate({
scrollTop: $(hash).offset().top
}, 900, function(){
window.location.hash = hash;
});
}
});
});
</script>
</head>
<body>
<header>
<img class="logo" src="https://i.imgur.com/o3Mmqvq.png" width="100" height="89" alt="">
<nav>
<ul>
<li>Home</li>
<li>Portfolio</li>
<li>Contact</li>
</ul>
</nav>
</header>
<section class="home-hero">
<div class="container">
<h1 class="title">Tobias Barsnes
<span>Portfolio</span>
</h1>
Take a look
</div>
</section>
<section class="home.about">
<div class="about bg">
<div class="home_about_box">
<h1>About Myself</h1>
<p>I am a 16 year old boy from Norway. My whole life I have been interested in graphical design, and I am currently studying "Medium and Communications".</p>
<p>A big goal for me is to get a job that has to do with graphical design. I have experience dating all the way back to 2012, but I am still in the "learning phase".</p>
</div>
</div>
</section>
<section class="portfolio_home" id="portfolio">
<h1>Some of my work</h1>
<figure class="port-item">
<!-- Portfolio 1 -->
<img src="https://i.imgur.com/eBRYWII.png" alt="portfolio item"/>
<figcaption class="port-desc">
<p>Geofilters</p>
</figcaption>
</figure>
<!-- Portfolio 2 -->
<figure class="port-item">
<img src="https://i.imgur.com/gAfgliA.png" alt="portfolio item"/>
<figcaption class="port-desc">
<p>Quixz eSports</p>
</figcaption>
</figure>
<!-- Portfolio 3 -->
<figure class="port-item">
<img src="https://i.imgur.com/IjoGmUT.png" alt="portfolio item"/>
<figcaption class="port-desc">
<p>3D Renders</p>
</figcaption>
</figure>
<!-- Portfolio 4 -->
<figure class="port-item">
<img src="https://i.imgur.com/4zymXa8.png" alt="portfolio item"/>
<figcaption class="port-desc">
<p>Backgrounds</p>
</figcaption>
</figure>
</section>
<section class="cta">
<div class="container">
<h1 class="title title-cta">Want to see more?
<span>Then what are you waiting for?</span>
</h1>
See More
</div>
</section>
<footer>
<section class="home-foot">
<ul class="unstyled-list">
<li> <strong>Website crafted by Tobias Barsnes</strong></li>
</ul>
</section>
</footer>
</body>
</html>

Answer 2

I'm not sure if this is what you want but try this CSS code:
.home_about_box {
background-color: transparent;
font-size: .8em;
padding: 4em;
outline: 2px solid #174fc1;
outline-offset: -3em;
color: #FFF;
position: absolute;
z-index:500;
margin-top:-25%;
;
}
Here's a fiddle: https://jsfiddle.net/er8qhrhL/