283 lines
4.6 KiB
Markdown
283 lines
4.6 KiB
Markdown
---
|
||
marp: true
|
||
theme: gaia
|
||
paginate: true
|
||
backgroundColor: #fff
|
||
header: "Web Engineering – DHBW Stuttgart"
|
||
footer: "Michael Czechowski – SoSe 2026"
|
||
---
|
||
|
||
<style>
|
||
:root {
|
||
--color-foreground: #1a1a2e;
|
||
--color-highlight: #d63384;
|
||
--color-dimmed: #4a4a6a;
|
||
}
|
||
section.invert {
|
||
--color-foreground: #fff;
|
||
}
|
||
section {
|
||
font-size: 1.4rem;
|
||
}
|
||
h1 {
|
||
color: #a02060;
|
||
}
|
||
section.invert h1 {
|
||
color: #fff;
|
||
}
|
||
h2 {
|
||
color: #1f2937;
|
||
}
|
||
section.invert h2 {
|
||
color: #f48fb1;
|
||
}
|
||
pre {
|
||
background: #0f0f23;
|
||
color: #d63384;
|
||
border-radius: 8px;
|
||
border-left: 3px solid #d63384;
|
||
}
|
||
pre code {
|
||
background: transparent;
|
||
color: inherit;
|
||
}
|
||
code {
|
||
background: #1a1a2e;
|
||
color: #d63384;
|
||
padding: 0.15em 0.4em;
|
||
border-radius: 4px;
|
||
}
|
||
a {
|
||
color: var(--color-highlight);
|
||
}
|
||
</style>
|
||
|
||
<!-- _class: invert -->
|
||
<!-- _header: '' -->
|
||
<!-- _backgroundColor: #000 -->
|
||
|
||
# Web Engineering
|
||
|
||
**DHBW Stuttgart** · Informatik / Wirtschaftsinformatik
|
||
|
||
**Sommersemester 2026** · Sitzung 2 — HTML & CSS (Frameworks)
|
||
|
||
---
|
||
|
||
# Inhalt
|
||
|
||
Aufbauend auf den Grundlagen aus Sitzung 1.
|
||
|
||
1. Attribut-Selektoren
|
||
2. Combinators (vertieft)
|
||
3. Pseudo-Klassen — erweitert
|
||
4. Shorthand Properties
|
||
5. Flexbox-Shorthands
|
||
6. Custom Properties (Variables)
|
||
7. CSS Functions (`calc`, `clamp`, ...)
|
||
8. Transition & Animation
|
||
9. CSS Frameworks (Tailwind & Co.)
|
||
|
||
---
|
||
|
||
<!-- _class: invert -->
|
||
<!-- _backgroundColor: #000 -->
|
||
|
||
# CSS: Extended
|
||
|
||
---
|
||
|
||
# CSS Selectors – Attribut-Selektoren
|
||
|
||
```css
|
||
/* presence */
|
||
[disabled] { opacity: 0.5; }
|
||
|
||
/* exact value */
|
||
[type="email"] { border-color: blue; }
|
||
|
||
/* contains word */
|
||
[class~="btn"] { cursor: pointer; }
|
||
|
||
/* starts with */
|
||
[href^="https"] { color: green; }
|
||
|
||
/* ends with */
|
||
[src$=".png"] { border: 1px solid #ccc; }
|
||
|
||
/* contains substring */
|
||
[class*="icon"] { padding-left: 20px; }
|
||
```
|
||
|
||
---
|
||
|
||
# CSS Combinators
|
||
|
||
```css
|
||
/* Child (direkt) */
|
||
div > p { margin: 0; }
|
||
|
||
/* Descendant (Nachkomme) */
|
||
div p { margin: 0; }
|
||
|
||
/* Next Sibling */
|
||
h1 + p { font-size: 1.2em; }
|
||
|
||
/* Subsequent Sibling */
|
||
h1 ~ p { color: #666; }
|
||
|
||
/* Selector List */
|
||
h1, h2, h3 { font-weight: bold; }
|
||
```
|
||
|
||
---
|
||
|
||
# Pseudo Classes – Erweitert
|
||
|
||
```css
|
||
/* Form States */
|
||
:valid { border-color: green; }
|
||
:invalid { border-color: red; }
|
||
:placeholder-shown { color: #999; }
|
||
|
||
/* Content */
|
||
:before { content: "→ "; }
|
||
:after { content: " [Wichtig]"; }
|
||
:first-letter { font-size: 2em; }
|
||
:first-line { font-weight: bold; }
|
||
|
||
/* NOT */
|
||
:not(.disabled) { pointer-events: auto; }
|
||
:not(:last-child) { border-bottom: 1px solid #ccc; }
|
||
```
|
||
|
||
---
|
||
|
||
# Shorthand Properties
|
||
|
||
```css
|
||
/* margin: top right bottom left */
|
||
margin: 10px 20px 10px 20px;
|
||
|
||
/* centering */
|
||
margin: 0 auto;
|
||
|
||
/* padding same */
|
||
padding: 20px;
|
||
|
||
/* border: width style color */
|
||
border: 1px solid #333;
|
||
|
||
/* background: color image position/size repeat */
|
||
background: #fff url(logo.png) 0 0 no-repeat;
|
||
|
||
/* font: style variant weight size/line-height family */
|
||
font: italic normal bold 16px/1.5 Arial, sans-serif;
|
||
```
|
||
|
||
---
|
||
|
||
# Flexbox Shorthands
|
||
|
||
```css
|
||
/* flex: grow shrink basis */
|
||
flex: 1 0 auto;
|
||
|
||
/* place-items: align-items justify-items */
|
||
place-items: center stretch;
|
||
|
||
/* place-content: align-content justify-content */
|
||
place-content: space-between center;
|
||
|
||
/* gap: row-gap column-gap */
|
||
gap: 20px 40px;
|
||
```
|
||
|
||
---
|
||
|
||
# CSS Custom Properties (Variables)
|
||
|
||
```css
|
||
:root {
|
||
--primary-color: #d63384;
|
||
--spacing: 20px;
|
||
--radius: 8px;
|
||
}
|
||
|
||
.button {
|
||
background: var(--primary-color);
|
||
padding: var(--spacing);
|
||
border-radius: var(--radius);
|
||
}
|
||
```
|
||
|
||
---
|
||
|
||
# CSS Functions
|
||
|
||
```css
|
||
/* calc */
|
||
width: calc(100% - 40px);
|
||
|
||
/* min/max/clamp */
|
||
width: min(100%, 600px);
|
||
font-size: clamp(14px, 2vw, 20px);
|
||
|
||
/* var with fallback */
|
||
color: var(--text-color, #333);
|
||
|
||
/* rgb/rgba/hsl/hsla */
|
||
color: hsl(200, 100%, 50%);
|
||
background: rgba(0, 0, 0, 0.5);
|
||
```
|
||
|
||
---
|
||
|
||
# Transition & Animation
|
||
|
||
```css
|
||
/* transition: property duration timing-function */
|
||
transition: all 0.3s ease-in-out;
|
||
transition: background 0.2s, transform 0.1s;
|
||
|
||
/* animation */
|
||
@keyframes fadeIn {
|
||
from { opacity: 0; }
|
||
to { opacity: 1; }
|
||
}
|
||
|
||
.fade-in {
|
||
animation: fadeIn 0.5s ease-out;
|
||
}
|
||
```
|
||
|
||
---
|
||
|
||
# CSS Frameworks
|
||
|
||
| Framework | Stil |
|
||
|-----------|------|
|
||
| **Bootstrap** | Komponenten + Grid, opinionated |
|
||
| **Tailwind CSS** | Utility-First, atomar |
|
||
| **Bulma** | klassisch, ohne JS |
|
||
| **shadcn/ui** | kopierbare Komponenten (Tailwind-basiert) |
|
||
| **Flowbite** | Tailwind-Komponentenbib. |
|
||
|
||
---
|
||
|
||
# Tailwind CSS – Beispiel
|
||
|
||
```html
|
||
<button class="bg-blue-600 hover:bg-blue-700
|
||
text-white font-semibold
|
||
px-4 py-2 rounded-lg
|
||
transition shadow-sm">
|
||
Klick mich
|
||
</button>
|
||
```
|
||
|
||
- Keine eigenen CSS-Klassen mehr
|
||
- JIT-Compiler erzeugt nur genutzte Klassen
|
||
- Design-System via `tailwind.config.js`
|
||
|