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Ich habe einen erweiterten CSS-Kurs auf edx.org gestartet, der von Microsoft bereitgestellt wird. Während ich Modul 1 mache, kann ich nicht nachvollziehen, warum die horizontale Bildlaufleiste nicht erscheint, wenn die Containerbreite größer als die Gerätebreite ist. Auch warum die Abschnitte automatisch 100% Breite haben. Warum wird die Containerbreite in Pixel und nicht in% angegeben, um das Layout ansprechend zu gestalten?Die horizontale Bildlaufleiste wird nicht angezeigt, wenn die Containerbreite mehr als die Gerätebreite beträgt.
Hilfe wäre sehr geschätzt.
/***************************
****************************
Reset Styles
****************************
***************************/
/*! normalize.css v4.1.1 | MIT License | github.com/necolas/normalize.css */
/**
* 1. Change the default font family in all browsers (opinionated).
* 2. Prevent adjustments of font size after orientation changes in IE and iOS.
*/
html {
font-family: sans-serif;
/* 1 */
-ms-text-size-adjust: 100%;
/* 2 */
-webkit-text-size-adjust: 100%;
/* 2 */
}
/**
* Remove the margin in all browsers (opinionated).
*/
body {
margin: 0;
}
/* HTML5 display definitions
========================================================================== */
/**
* Add the correct display in IE 9-.
* 1. Add the correct display in Edge, IE, and Firefox.
* 2. Add the correct display in IE.
*/
article,
aside,
details,
/* 1 */
figcaption,
figure,
footer,
header,
main,
/* 2 */
menu,
nav,
section,
summary {
/* 1 */
display: block;
}
/**
* Add the correct display in IE 9-.
*/
audio,
canvas,
progress,
video {
display: inline-block;
}
/**
* Add the correct display in iOS 4-7.
*/
audio:not([controls]) {
display: none;
height: 0;
}
/**
* Add the correct vertical alignment in Chrome, Firefox, and Opera.
*/
progress {
vertical-align: baseline;
}
/**
* Add the correct display in IE 10-.
* 1. Add the correct display in IE.
*/
template,
/* 1 */
[hidden] {
display: none;
}
/* Links
========================================================================== */
/**
* 1. Remove the gray background on active links in IE 10.
* 2. Remove gaps in links underline in iOS 8+ and Safari 8+.
*/
a {
background-color: transparent;
/* 1 */
-webkit-text-decoration-skip: objects;
/* 2 */
}
/**
* Remove the outline on focused links when they are also active or hovered
* in all browsers (opinionated).
*/
a:active,
a:hover {
outline-width: 0;
}
/* Text-level semantics
========================================================================== */
/**
* 1. Remove the bottom border in Firefox 39-.
* 2. Add the correct text decoration in Chrome, Edge, IE, Opera, and Safari.
*/
abbr[title] {
border-bottom: none;
/* 1 */
text-decoration: underline;
/* 2 */
text-decoration: underline dotted;
/* 2 */
}
/**
* Prevent the duplicate application of `bolder` by the next rule in Safari 6.
*/
b,
strong {
font-weight: inherit;
}
/**
* Add the correct font weight in Chrome, Edge, and Safari.
*/
b,
strong {
font-weight: bolder;
}
/**
* Add the correct font style in Android 4.3-.
*/
dfn {
font-style: italic;
}
/**
* Correct the font size and margin on `h1` elements within `section` and
* `article` contexts in Chrome, Firefox, and Safari.
*/
h1 {
font-size: 2em;
margin: 0.67em 0;
}
/**
* Add the correct background and color in IE 9-.
*/
mark {
background-color: #ff0;
color: #000;
}
/**
* Add the correct font size in all browsers.
*/
small {
font-size: 80%;
}
/**
* Prevent `sub` and `sup` elements from affecting the line height in
* all browsers.
*/
sub,
sup {
font-size: 75%;
line-height: 0;
position: relative;
vertical-align: baseline;
}
sub {
bottom: -0.25em;
}
sup {
top: -0.5em;
}
/* Embedded content
========================================================================== */
/**
* Remove the border on images inside links in IE 10-.
*/
img {
border-style: none;
}
/**
* Hide the overflow in IE.
*/
svg:not(:root) {
overflow: hidden;
}
/* Grouping content
========================================================================== */
/**
* 1. Correct the inheritance and scaling of font size in all browsers.
* 2. Correct the odd `em` font sizing in all browsers.
*/
code,
kbd,
pre,
samp {
font-family: monospace, monospace;
/* 1 */
font-size: 1em;
/* 2 */
}
/**
* Add the correct margin in IE 8.
*/
figure {
margin: 1em 40px;
}
/**
* 1. Add the correct box sizing in Firefox.
* 2. Show the overflow in Edge and IE.
*/
hr {
box-sizing: content-box;
/* 1 */
height: 0;
/* 1 */
overflow: visible;
/* 2 */
}
/* Forms
========================================================================== */
/**
* 1. Change font properties to `inherit` in all browsers (opinionated).
* 2. Remove the margin in Firefox and Safari.
*/
button,
input,
select,
textarea {
font: inherit;
/* 1 */
margin: 0;
/* 2 */
}
/**
* Restore the font weight unset by the previous rule.
*/
optgroup {
font-weight: bold;
}
/**
* Show the overflow in IE.
* 1. Show the overflow in Edge.
*/
button,
input {
/* 1 */
overflow: visible;
}
/**
* Remove the inheritance of text transform in Edge, Firefox, and IE.
* 1. Remove the inheritance of text transform in Firefox.
*/
button,
select {
/* 1 */
text-transform: none;
}
/**
* 1. Prevent a WebKit bug where (2) destroys native `audio` and `video`
* controls in Android 4.
* 2. Correct the inability to style clickable types in iOS and Safari.
*/
button,
html [type="button"],
/* 1 */
[type="reset"],
[type="submit"] {
-webkit-appearance: button;
/* 2 */
}
/**
* Remove the inner border and padding in Firefox.
*/
button::-moz-focus-inner,
[type="button"]::-moz-focus-inner,
[type="reset"]::-moz-focus-inner,
[type="submit"]::-moz-focus-inner {
border-style: none;
padding: 0;
}
/**
* Restore the focus styles unset by the previous rule.
*/
button:-moz-focusring,
[type="button"]:-moz-focusring,
[type="reset"]:-moz-focusring,
[type="submit"]:-moz-focusring {
outline: 1px dotted ButtonText;
}
/**
* Change the border, margin, and padding in all browsers (opinionated).
*/
fieldset {
border: 1px solid #c0c0c0;
margin: 0 2px;
padding: 0.35em 0.625em 0.75em;
}
/**
* 1. Correct the text wrapping in Edge and IE.
* 2. Correct the color inheritance from `fieldset` elements in IE.
* 3. Remove the padding so developers are not caught out when they zero out
* `fieldset` elements in all browsers.
*/
legend {
box-sizing: border-box;
/* 1 */
color: inherit;
/* 2 */
display: table;
/* 1 */
max-width: 100%;
/* 1 */
padding: 0;
/* 3 */
white-space: normal;
/* 1 */
}
/**
* Remove the default vertical scrollbar in IE.
*/
textarea {
overflow: auto;
}
/**
* 1. Add the correct box sizing in IE 10-.
* 2. Remove the padding in IE 10-.
*/
[type="checkbox"],
[type="radio"] {
box-sizing: border-box;
/* 1 */
padding: 0;
/* 2 */
}
/**
* Correct the cursor style of increment and decrement buttons in Chrome.
*/
[type="number"]::-webkit-inner-spin-button,
[type="number"]::-webkit-outer-spin-button {
height: auto;
}
/**
* 1. Correct the odd appearance in Chrome and Safari.
* 2. Correct the outline style in Safari.
*/
[type="search"] {
-webkit-appearance: textfield;
/* 1 */
outline-offset: -2px;
/* 2 */
}
/**
* Remove the inner padding and cancel buttons in Chrome and Safari on OS X.
*/
[type="search"]::-webkit-search-cancel-button,
[type="search"]::-webkit-search-decoration {
-webkit-appearance: none;
}
/**
* Correct the text style of placeholders in Chrome, Edge, and Safari.
*/
::-webkit-input-placeholder {
color: inherit;
opacity: 0.54;
}
/**
* 1. Correct the inability to style clickable types in iOS and Safari.
* 2. Change font properties to `inherit` in Safari.
*/
::-webkit-file-upload-button {
-webkit-appearance: button;
/* 1 */
font: inherit;
/* 2 */
}
html {
box-sizing: border-box;
}
*,
*:before,
*:after {
box-sizing: inherit;
}
/***************************
****************************
Base Styles
****************************
***************************/
body {
color: #414042;
font-family: Arial, Helvetica, sans-serif;
font-weight: normal;
}
h1,
h2,
h3 {
font-weight: bold;
}
a {
color: #8dc63f;
font-weight: bold;
}
a:hover {
text-decoration: underline;
}
/***************************
****************************
Layout Styles
****************************
***************************/
.container {
padding-left: 15px;
padding-right: 15px;
margin-right: auto;
margin-left: auto;
max-width: 1170px;
}
.row {
margin-right: -15px;
margin-left: -15px;
}
.row:after {
content: "";
display: table;
clear: both;
}
/***************************
****************************
Module Styles
****************************
***************************/
/***************************
****************************
Theme Styles
****************************
***************************/
.background-primary {
background: #F7941E;
/*Orange*/
}
.background-secondary {
background: #00AEEF;
/*Blue*/
}
.background-tertiary {
background: #8DC63F;
/*Green*/
}<!DOCTYPE html>
<html>
<head>
<meta charset="UTF-8">
<meta name="viewport" content="width=device-width, initial-scale=1.0">
<title>title</title>
<link rel="stylesheet" href="stylesheet.css" type="text/css">
</head>
<body>
<header class="background-primary">
<div class="container">
Header Content
</div>
</header>
<main>
<section class="background-secondary">
<div class="container">
Hero Primary Content
</div>
</section>
<section>
<div class="container">
Image and Text Content
</div>
</section>
<section>
<div class="container">
Featured Content
</div>
</section>
<section class="background-primary">
<div class="container">
Testimonial Content
</div>
</section>
<section class="background-secondary">
<div class="container">Media Objects
</div>
</section>
<section class="background-tertiary">
<div class="container">
More Content
</div>
</section>
</main>
<footer class="background-primary">
<div class="container">
Footer Content
</div>
</footer>
</body>
</html>
tldr; Überlauf-X: Auto – Asthmatic
Überlauf-X: Auto in Ihrem CSS. –
Einstellung overflow-x: auto wird nichts tun, wenn es keinen Überlauf gibt. – jcarapia