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HTML

Sébastien Merour
publié le 13/06/2020 à 15h46 | modifé le 13/06/2020 à 19h00
Catégorie : Langages | Commentaires (7765)
HTML
Description

HTML signifie : Hypertext Markup Language

Le langage HTML est constitué :

- de balises (tags en anglais)

- d'attributs (attributes)

- d'éléments (ce qui se trouve entre la balise ouvrante < et la balise fermante >).

Structure d'une page Web

Une page HTML est constituée au minimum :

- du doctype (pour indiquer au navigateur que le document est de type HTML)

- des balises qui elles-mêmen renferment 2 autres balises : et : ces 3 balises  sont les balises de premier niveau.

La section Head

La balise head renferme plusieurs balises qui sont interprétées par le navigateur, mais dont le contenu n'est pas affiché sur la page.

La section Head contient de nombreuses balises, parmi lesquelles nous trouvons : l'encodage de la page (le plus souvent UTF-8), le titre de la page (balise title) . On y trouve également des balises meta, des liens vers des feuilles de style CSS, et parfois des scripts en Javascript.

Les différentes balises meta et title jouent un rôle primordial pour le référencement.

La section Body

Elle contient au contraire tout ce qui sera affiché sur la page web dans le navigateur. Il existe de nombreux types de balises :

- les balises sectionnantes (permettant de diviser la page en plusieurs sections, comme header, nav, section, footer, article. Elles sont primordiales car elles donnent des indicationx aux moteurs de recherche qui parcourent les pages web).

- les balises de structuration du texte (comme les headings, les blockquotes, les paragraphes)

- les balises de listes (numérotées ou non)

- les balises de tableau (désormais déconseillées pour construire une page web, mais parfois très utiles pour construire le template d'une newsletter)

- les balises de formulaire (form, input, textarea...)

- les balises génériques (div, span...)

Mode d'affichage des éléments HTML

Il existe également une autre façon de distinguer certains types de balises.

On parle parfois en effet de :

- balises "inline" qui permettent de définir l'affichage d'un élément sans retour à la ligne. Parmi les balises inline, nous avons par exemple les balises  span, a, strong, img ...

- balises "blocks": elles occupent toute la largeur disponibles. Lorsque 2 éléments de type "blocks" se suivent, ils sont disposés par défaut l'un en dessous de l'autre. Nous avons par exemple les balises div, h1, p, ul, form, table, blockquote.

-de balises "invisibles" : elles ne s'affichent pas sur la page, comme par exemple la balise meta, inclue dans la partie head de la page.

Fonctionnalités
HTML permet d'écrire de l'hypertexte. Il permet de structurer sémantiquement et logiquement le contenu des pages web, mais aussi d'inclure des éléments multimédia tels que des images ou des vidéos.
Année de création
1992
Créateur
Web Hypertext Application Technology Working Group
Dernière version
5.2
Langage
HTML
Liens
Aux dernières nouvelles
Actuellement, la dernière version du HTML est le HTML 5. Mais les membres du groupe de travail du W3C veulent créer un HTML Living Standard, une version du HTML qui n'aurait pas de numéro de version. Ainsi le HTML serait en constante évolution.
7765 Commentaire(s)
  1. user
    otdyh_arhipo_osipovka_fcPn
    08/07/2025 à 00h37  commentaire modifé
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  2. user
    WalterFep
    07/07/2025 à 22h07  commentaire modifé
    Dear Colleagues! We present to your attention modern equipment for vibration adjustment of rotating mechanisms - portable balancing device Balanset-1A. Official product page: https://vibromera.eu/shop/889/ Professional vibration analysis set Application Areas Balanset-1A is successfully operated for balancing of diverse kinds rotating mechanisms: Production Mechanisms: Ventilation Systems - manufacturing, centrifugal, duct. Pump Units - gear, water. Electromotors - synchronous. Turbine Units - gas. Compression Equipment - screw. Machine Tools: Machine Spindles - grinding. Grinding Discs. Roll Equipment of textile equipment. Agricultural Machinery: Threshing Drums. Rotary Mowers. Grinding Equipment for feed. Special Equipment: Centrifugal Equipment - laboratory. Blowers. Grinding Equipment. Transmission Shafts. Field balancing on combine harvester Technical Parameters Key Characteristics: Correction planes: One or two. Frequency range: 200 to 15,000 rpm. Phase measurement accuracy: ±1°. Vibration measurement precision: ±5%. Measurement channels: 2. Vibration measurement limits: 0.1 to 300 mm/s. Power supply: Via USB interface. Kit weight: 4 kg. System Capabilities: Automatic calculation of compensating masses. Database of operations. Tolerance calculation according to ISO 1940. FFT analysis of vibration. Data visualization in polar coordinates. Correction mass distribution. Index balancing of mandrels. Package Contents Basic Kit: USB interface unit (1 pc.) - ensures signal processing between sensors and computer. Vibration transducers (2 pcs.) - Output signal: 100 mV/g. Bandwidth: 0.5-10,000 Hz. Mounting: threaded stud. Vibration sensor with cable Speed sensor (1 pc.) - Distance: up to 1.5 m. Remote sensing for safe operation. Laser tachometer MS2234 Holder for phase sensor (1 pc.) - Pull force: 60 kgf. Variable angles for accurate readings. Professional magnetic stand Digital scales up to 500 g (1 pc.) - Resolution: 0.01 g. Essential for precise weight measurement. Balancing software Balanset-1A - User-friendly interface. Windows compatible. Multiple language support. Balancing program settings Transport case (1 pc.) - Heavy-duty build. Protective padding for secure storage. User manual - Comprehensive guide. Practical examples. Connection cables - Reliable interference-free connections. Advantages of Balanset-1A Technical Advantages: ? Accurate Results - Advanced methods of signal processing ensure dependable measurements. ? Portability - Small dimensions facilitates field operations without removal. ? Versatility - Works with all kinds rotors from compact motors to massive shafts. ? Ease of Use - User-friendly software requires no special training. Workshop balancing setup Economic Advantages: ? Expense Cutting on repairs through timely diagnostics - 50-80% of emergency repairs. ? Equipment Life Extension by 50-200% - properly maintained rotors operates reliably. ? Power Savings by 5-15% - balanced rotors consume less power. ? Quick Payback - from 3 to 12 months depending on application frequency. Additional Services We offer: Specialist Preparation - theoretical sessions in our facility. Certification program encompasses all aspects. Technical Support - on-site assistance. Email support for immediate help. Certification - regular certification to ensure precision. Device Leasing - perfect for trial operations. Daily lease terms available. Large machinery diagnostics Pricing Current Pricing: Balanset-1A Portable Balancer & Vibration Analyzer: €1,751.00 Balanset-1A OEM Version: €1,561.00 Additional Vibration Sensor: €90.00 Optical Sensor (Laser Tachometer): €124.00 Magnetic Stand 60 kgf: €46.00 Reflective Tape: €10.00 Advanced diagnostic system Delivery Terms: Lead time: from 3 days. Warranty: 24 months comprehensive coverage. Payment: 50/50. Delivery: international shipping via reliable carriers. Our Advantages Direct Manufacturer - original equipment with comprehensive backup. Qualified Personnel with deep knowledge in rotor balancing. Comprehensive Support - from sales to maintenance and training. Ready Stock - quick delivery for common configurations. Flexible Terms for long-term cooperation including special pricing. Full vibration analysis set With best wishes, Professional experts group P.S. Ask for presentation of the equipment today and take advantage of offers!
  3. user
    Прокарниз
    07/07/2025 à 20h55  commentaire modifé
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  4. user
    WalterFep
    07/07/2025 à 20h47  commentaire modifé
    Good Day! We present to your attention high-tech equipment for vibration adjustment of rotating mechanisms - portable balancing device Balanset-1A. Official product page: https://vibromera.eu/shop/889/ Full balancing system Where It's Applied Balanset-1A is actively applied for vibration adjustment of diverse kinds rotating mechanisms: Production Mechanisms: Ventilation Units - industrial, exhaust, axial. Pumps - gear, oil. Electric Motors - synchronous. Turbine Units - gas. Compression Equipment - piston. Processing Equipment: Machine Spindles - grinding. Grinding Discs. Roll Equipment of textile equipment. Farm Machines: Choppers. Rotary Mowers. Crushing Units for fertilizers. Specialized Machinery: Centrifuges - laboratory. Air Blowers. Grinding Equipment. Drive Shafts. Field balancing on combine harvester Technical Parameters Main Parameters: Number of balancing planes: 1 or 2. Operating speed range: 200 to 15,000 rpm. Phase determination accuracy: ±1°. Vibration measurement precision: ±5%. Number of measurement channels: 2. Vibration velocity measurement range: 0.1 to 300 mm/s. Power: From computer USB port. Equipment mass: 4 kg. Functional Capabilities: Automated computation of correction masses. Results archiving of measurements. Tolerance calculation according to ISO 1940. Spectral analysis of vibration. Graphical display in polar coordinates. Correction mass distribution. Runout compensation of mandrels. Package Contents Basic Kit: USB interface unit (1 pc.) - ensures signal processing between sensors and computer. Vibration sensors (2 pcs.) - Sensitivity: 100 mV/g. Operating frequencies: 0.5-10,000 Hz. Attachment: threaded stud. Professional vibration transducer Laser phase sensor (1 pc.) - Operating distance: up to 1.5 m. Contactless operation for maximum safety. Digital RPM sensor Holder for phase sensor (1 pc.) - Pull force: 60 kgf. Variable angles for optimal alignment. INSIZE magnetic base Precision scales up to 500 g (1 pc.) - Accuracy: 0.01 g. Essential for accurate mass determination. Program Balanset-1A - Easy-to-use design. Windows compatible. International versions. Balanset software interface Carrying case (1 pc.) - Robust design. Foam inserts for safe transport. Technical documentation - Comprehensive guide. Clear methodology. Interface cables - Reliable noise-resistant wiring. Strong Points of Balanset-1A Technical Benefits: ? Precision Measurements - Advanced methods of digital filtering guarantee consistent accuracy. ? Portability - Easy transportation facilitates on-site balancing without removal. ? Versatility - Suitable for any types rotors from miniature spindles to heavy rotors. ? Simple Operation - Intuitive interface requires no complex learning. Professional vibration diagnostics Financial Benefits: ? Savings on maintenance through preventive maintenance - 50-80% of emergency repairs. ? Service Life Increase by 50-200% - vibration-free operation lasts longer. ? Energy Consumption Reduction by 5-15% - reduced friction consume less power. ? Short ROI Period - from 3 to 12 months depending on usage intensity. Service We offer: Specialist Preparation - theoretical sessions in our facility. Certification program encompasses complete methodology. Expert Assistance - 24/7 help. Phone consultations for immediate help. Verification and Calibration - periodic verification to maintain accuracy. Temporary Use - suitable for short-term needs. Weekly rental options available. Industrial equipment balancing Commercial Terms Current Pricing: Balanset-1A Portable Balancer & Vibration Analyzer: €1,751.00 Balanset-1A OEM Version: €1,561.00 Additional Vibration Sensor: €90.00 Optical Sensor (Laser Tachometer): €124.00 Magnetic Stand 60 kgf: €46.00 Reflective Tape: €10.00 Advanced diagnostic system Shipping Conditions: Shipping period: from 3 days. Guarantee period: 24 months full warranty. Payment: negotiable. Shipping: worldwide via courier service. Why We Stand Out Direct Manufacturer - genuine products with complete service. Expert Engineers with deep knowledge in predictive maintenance. Comprehensive Support - from supply to maintenance and skill development. Ready Stock - quick delivery for standard items. Custom Conditions for regular customers including volume discounts. Professional balancing kit Best regards, Technical support team P.S. Ask for presentation of the equipment today and learn about promotions!
  5. user
    chickenFap
    07/07/2025 à 12h41  commentaire modifé
    what is chicken road Chicken Road: Real Player Feedback Chicken Road stands out as a gambling game with arcade vibes, attracting users with its easytograsp gameplay, high RTP (98%), and distinctive cashout system. We’ve collected honest feedback from actual players to see if it lives up to expectations. What Users Appreciate A lot of gamers appreciate how Chicken Road combines fast gameplay with simple controls. The ability to cash out at any time adds a strategic twist, while the high RTP makes it feel fairer than traditional slots. The riskfree demo mode has been a favorite among new players, providing a safe way to explore the game. Players also rave about the mobilefriendly design, which performs flawlessly even on outdated gadgets. Melissa R., AU: “Surprisingly fun and fair! The cashout feature adds strategy.” Nathan K., UK: “The arcade style is refreshing. Runs smoothly on my tablet.” The bright, nostalgic visuals add to the fun factor, keeping players hooked. Drawbacks However, Chicken Road isn’t perfect, and there are a few issues worth noting. Some players find the gameplay repetitive and lacking depth. Players also point out unresponsive support teams and insufficient features. One frequent criticism is deceptive marketing, as people thought it was a pure arcade game rather than a gambling platform. Tom B., US: “Fun at first, but it gets repetitive after a few days.” Sam T., UK: “Marketed as a casual game, but it’s actually a gamblingfocused app.” Pros and Cons Positive Aspects Straightforward, actionpacked mechanics High RTP (98%) ensures fairness Practice mode to explore without financial risk Optimized for flawless mobile play Disadvantages It might feel too predictable over time Lack of diversity and additional options Delayed responses from support teams Deceptive advertising Overall Assessment Thanks to its transparency, high RTP, and userfriendliness, Chicken Road makes a mark. It’s a great option for casual players or those new to online gambling. That said, its focus on chance and limited depth might not satisfy all players. For optimal results, choose verified, legitimate platforms. Rating: 4/5 An enjoyable and equitable option, though it has areas to grow.
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