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Questions and Answers

What is a primary disadvantage of using internal style sheets in CSS?

  • They do not affect the visual properties of elements at all.
  • They cannot be applied to specific HTML documents.
  • They require linkage to multiple external styles.
  • They lead to increased file size and reduced code reusability. (correct)

Which method of incorporating CSS allows for specific styles to be applied directly within an HTML element?

  • Internal styles
  • External styles
  • Inline styles (correct)
  • Class selection

What is the purpose of the class attribute in CSS?

  • To apply styles exclusively to a single HTML element.
  • To create a unique styling method for every web page.
  • To define the hierarchical order of multiple style sheets.
  • To group elements that share common characteristics for styling. (correct)

Which of the following statements about external style sheets is true?

<p>They help establish consistent styles across various web pages. (D)</p> Signup and view all the answers

In which section of an HTML document would you link an external style sheet?

<p>Inside the head section (C)</p> Signup and view all the answers

What attribute of the text area tag specifies the number of visible character rows?

<p>rows (A)</p> Signup and view all the answers

What must be true about radio buttons within the same group?

<p>Only one can be selected at a time. (C)</p> Signup and view all the answers

Which tag is used to create a checkbox input in HTML?

<p><input type='checkbox'> (B)</p> Signup and view all the answers

What does the 'checked' attribute signify in a checkbox input?

<p>It pre-selects the checkbox by default. (D)</p> Signup and view all the answers

When a checkbox is not checked, what value is transmitted to the server?

<p>No value is transmitted (A)</p> Signup and view all the answers

What is the purpose of the 'type' attribute in the password input tag?

<p>To mask the input text (B)</p> Signup and view all the answers

Which statement correctly describes the value attribute in a radio button?

<p>It specifies the option value associated with the selected button. (A)</p> Signup and view all the answers

What is the main purpose of CSS in web development?

<p>To separate structural elements from presentational aspects. (C)</p> Signup and view all the answers

Which of the following statements about CSS rulesets is true?

<p>Each ruleset must be enclosed in curly braces. (A)</p> Signup and view all the answers

Which part of a CSS declaration specifies the visual effect applied to an element?

<p>Property (A)</p> Signup and view all the answers

What symbol is used to separate declarations within a ruleset?

<p>; (A)</p> Signup and view all the answers

What would the declaration 'color: green;' change in an HTML element?

<p>The text color of the element. (A)</p> Signup and view all the answers

Which of the following methods is NOT used to incorporate CSS into HTML documents?

<p>Dynamic style sheets (D)</p> Signup and view all the answers

In a CSS ruleset, what does the selector identify?

<p>The elements to be styled. (B)</p> Signup and view all the answers

If a property can have multiple possible values, what does the property value represent?

<p>A specific choice among the possible values. (A)</p> Signup and view all the answers

What is a significant advantage of using CSS in web design?

<p>It allows web developers to write less code overall. (D)</p> Signup and view all the answers

What must be included in every CSS declaration for clarity?

<p>A colon separating property and value. (D)</p> Signup and view all the answers

What does the maxlength attribute specify in a password input?

<p>The maximum number of characters that can be entered in the password field. (B)</p> Signup and view all the answers

Which attribute ensures that the password field cannot be interacted with?

<p>Disabled (D)</p> Signup and view all the answers

What does the pattern attribute require for the input to be valid?

<p>That the input matches a specified regular expression. (D)</p> Signup and view all the answers

What happens if the user enters fewer characters than the minlength in the password field?

<p>The input will be invalid. (C)</p> Signup and view all the answers

How is a select menu created in HTML?

<p>By enclosing <option> tags within the <select> tag. (B)</p> Signup and view all the answers

What is the role of the label tag in relation to select menus?

<p>It provides descriptive text for accessibility purposes. (D)</p> Signup and view all the answers

What must the minlength value be in relation to maxlength?

<p>It must be smaller than or equal to maxlength. (B)</p> Signup and view all the answers

What will happen if the password field is marked as required but left empty?

<p>The input will be invalid, preventing submission. (A)</p> Signup and view all the answers

What is indicated by the 'value' attribute of the option tag in a select menu?

<p>The data to be submitted to the server when the option is selected. (B)</p> Signup and view all the answers

What happens when the 'multiple' attribute is applied to a select menu?

<p>The user can select multiple options simultaneously. (D)</p> Signup and view all the answers

Which attribute indicates that the user must select an option before submitting a form?

<p>Required (D)</p> Signup and view all the answers

In what scenario does the 'size' attribute have no effect in a select menu?

<p>When 'multiple' attribute is absent. (D)</p> Signup and view all the answers

What differentiates a password field from a text field in HTML?

<p>A password field masks user input with a symbol. (A)</p> Signup and view all the answers

Which attribute in a select menu prevents the user from interacting with the dropdown?

<p>Disabled (C)</p> Signup and view all the answers

What type of input validation can a text field accept that a password field cannot?

<p>Numerical validation (B)</p> Signup and view all the answers

What is a common feature of CSS?

<p>Specifies the presentation of web documents. (B)</p> Signup and view all the answers

What is the outcome if the 'disabled' attribute is applied to a select menu?

<p>The user cannot select any options from the dropdown. (C)</p> Signup and view all the answers

What is the primary purpose of the 'size' attribute in a select menu?

<p>It specifies how many options will be visible. (B)</p> Signup and view all the answers

What is the main purpose of masking the input in a password field?

<p>To prevent exposure of sensitive information. (B)</p> Signup and view all the answers

Flashcards

Text Area

A text area element in HTML allows users to enter multi-line text. It's defined by the <textarea> tag.

Radio Button

Radio buttons allow users to choose one option from a group. Each radio button has a name to group it and a value to identify its choice.

Label Tag

The tag

Checkbox

Checkboxes are used to offer multiple selectable options. They have a name to group them, a value to identify each choice, and an optional 'checked' attribute for default selection.

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Password Input

A password input field (<input type="password">) is designed for secure entry of passwords, masking the typed text with symbols.

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Text Area Dimensions

HTML uses the cols attribute to specify width and rows attribute to specify height for the text area element.

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Form Element Value

The value attribute in a form element determines the data submitted to the server. It's essential for capturing user input.

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Password Input Field

A form field that allows users to securely enter passwords. The input is masked with symbols to prevent visibility.

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Select Menu Tag

An HTML tag that creates a dropdown list where users can select one value.

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Option Tag

The element within a select menu representing a single option. It has a value attribute that defines the data submitted when selected.

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Optgroup Tag

A tag that groups related options within a select menu, providing a label for better categorization.

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Maxlength Attribute

The attribute used to set a maximum character limit for an input field.

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Minlength Attribute

The attribute used to set a minimum character limit for an input field.

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Pattern Attribute

An attribute used to define a regular expression that the input value must match for validation.

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Required Attribute

An attribute that makes an input field mandatory for form submission. It requires the user to enter a value.

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Disabled Attribute

An attribute that disables user interaction with an input field. It prevents any changes and the value is not sent to the server.

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Multiple Attribute

An HTML attribute that allows users to select multiple options from a drop-down list. When used, the listbox becomes scrollable.

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Size Attribute for Drop-down

The size attribute controls the number of options visible in a drop-down list. This determines its height, especially when used with the 'multiple' attribute.

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Password Field

An HTML input element for secure password entry, hiding the text with symbols like * or dots.

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Text Field

An input element that displays the user's input as plain text, allowing copying and pasting.

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CSS (Cascading Style Sheets)

A stylesheet language used to control the visual appearance and presentation of HTML or XML documents.

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What does CSS do?

CSS separates the structural elements (HTML) from the presentational aspects (CSS) of a web page, allowing designers to apply styles like colors, fonts, and spacing.

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How does CSS apply rules?

CSS rules are applied to HTML elements based on selectors, such as names, classes, or IDs.

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What's a ruleset in CSS?

A single CSS rule, formed by a selector and one or more declarations.

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What's a selector in CSS?

The element name at the start of a ruleset, defining which element(s) to style.

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What's a declaration in CSS?

A specific style rule (like color: red;) within a ruleset that specifies which property to style.

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What are properties in CSS?

Various methods of styling an HTML element (color, font-size, etc.), chosen within a CSS rule.

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What's a property value in CSS?

The value that determines the appearance of a specific property (e.g., 'red' for the color property) within a CSS rule.

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What are the key symbols in CSS?

Curly braces ({} ) contain rulesets in CSS, while colons (:) separate properties from values and semicolons (;) separate declarations.

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How can you incorporate CSS?

Inline styles apply directly within an HTML element, internal styles are within the <style> tag, and external styles are in separate CSS files.

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Why is CSS important?

CSS helps create visually appealing and consistent website layouts, making maintenance easier and enhancing user experience.

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External Style Sheet

A method of applying styles to HTML elements using a separate file with a .css extension. It allows consistent styling across multiple pages and promotes code reusability.

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Inline Style

Applying styles directly to HTML elements using the 'style' attribute within the element tag. This allows for specific styling of individual elements without affecting others.

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Internal Style Sheet

Styles applied within the <style> tag in the head section of an HTML document. This allows customization of elements within the same document but lacks reusability and can increase file size.

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Class Selection

A way to target HTML elements in CSS by using a specific 'class' attribute assigned to the element. Helps apply the same styles to multiple elements with the same class.

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CSS Cascade

The process where CSS rules are applied to elements in a hierarchical order, considering the origin and specificity of the rules. This determines which style takes precedence in case of conflicts.

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Study Notes

HTML Input Elements

  • Text Area: Defined by the <textarea> tag. Has rows and cols attributes for height and width.

  • Radio Buttons: The <input type="radio"> tag. Uses a name attribute to group related options and a value attribute for each option. Only one radio button in a group can be selected at a time. Crucial for constraining user selection.

  • Checkboxes: The <input type="checkbox"> tag. Uses name and value attributes. Can be selected/unselected, or have a default selected state controlled by the checked attribute, meaning it will be pre-checked. Only transmits a value if checked.

  • Password Input: The <input type="password"> tag. Masks user input for security. Uses attributes:

    • maxlength: Maximum character limit.
    • minlength: Minimum character limit.
    • pattern: Regular expression to validate input (e.g., [A-Za-z0-9]{8,}) for at least 8 alphanumeric chars.
    • required: The user must enter a value

HTML Select Menus

  • Select Menu: The <select> tag. Creates a drop-down list. multiple attribute allows selecting multiple options simultaneously. size attribute determines the height of the list box; has no effect without multiple unless value is 1. required attribute forces a selection. disabled attribute prevents user interaction and submission.
  • Select Options: The <option> tags within the <select> tag define each option in the list. Each <option> has a value attribute for what data is sent to the server

CSS (Cascading Style Sheets)

  • CSS Selectors: Target HTML elements by name, class, or ID (e.g., p, .center, #demo), enabling style application.
  • CSS Rulesets: Declare style rules (e.g., color: red;) for the selected HTML elements, separating the property (color) and the value (red).
  • CSS Properties: Style characteristics like color, font-size, text-align.
    • Property values are placed after the colon (:).
    • Multiple declarations in a selector are separated by a semicolon (;).
  • Selectors & Declarations: Combine multiple selectors and declarations in a CSS rule set.
    • selector { property: value; property2 : value2; }.
  • Inline Styles: Apply styles directly to individual HTML elements using the style attribute of the HTML element.
  • Internal Styles: Define styles within an HTML document, applying those styles only to that document.
  • External Styles: Create separate .css files to define styles, linking them to HTML documents for reusability and maintainability.

HTML and CSS Box Model

  • Box Model: A fundamental concept in CSS and HTML, describing how elements are laid out on a web page, conceptually wrapping the element, in layers of content, padding, border and margin (e.g., a border around text, space around a button)
  • Content: The actual text or elements displayed inside an HTML element.
  • Padding: The space between the content and the border.
  • Border: The visible line around an element.
  • Margin: The space outside the border of an element

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