CSS3: Text and Box Shadows

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Questions and Answers

Which CSS3 property is used to add shadow effects to text?

  • text-outline
  • text-shadow (correct)
  • outline-text
  • shadow-text

A negative value for the horizontal offset in text-shadow moves the shadow to the right of the text.

False (B)

What unit of measurement is used to specify the blur radius in the text-shadow property?

pixels

A blur-radius of 0px in a text-shadow results in a shadow with a ______ edge.

<p>sharp</p> Signup and view all the answers

Match the text-shadow property values with their descriptions:

<p>Horizontal offset = Position of the shadow to the left or right Vertical offset = Position of the shadow above or below Blur radius = Blurriness of the shadow Color = Color of the shadow</p> Signup and view all the answers

Which CSS property is used to add shadow effects to block-level elements?

<p>box-shadow (C)</p> Signup and view all the answers

Applying a negative value to the vertical offset in box-shadow will move the shadow down.

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

What effect does increasing the blur radius in a box-shadow have on the shadow's edges?

<p>blurred</p> Signup and view all the answers

Similar to text shadows, a blur-radius of ______ in a box-shadow will result in a sharp-edged shadow.

<p>0px</p> Signup and view all the answers

Match the box-shadow property values with their corresponding effect on an element's shadow:

<p>Horizontal Offset = Controls the distance of the shadow to the left or right of the box. Vertical Offset = Controls the distance of the shadow above or below the box. Blur Radius = Controls how blurry the shadow appears. Color = Specifies the color of the shadow.</p> Signup and view all the answers

Which CSS property is used to create a visually appealing effect of transitioning from one image to another?

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

In the context of transitioning between images, the transition-duration specifies the property that will change during the transition.

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

In a CSS transition for transitioning between images, what value is commonly used to set the end opacity of the top image when hovering over it, in order to 'melt' the top image into the bottom image?

<p>0</p> Signup and view all the answers

In CSS transitions, the transition-timing-function property defines the speed curve of the transition effect. An example of this property is ease-______.

<p>in-out</p> Signup and view all the answers

Match the following transition property values with their descriptions:

<p>Property = Specifies the name of the CSS property the transition applies to. Duration = Specifies how many seconds or milliseconds a transition effect takes to complete. Timing Function = Specifies the speed curve of the transition effect.</p> Signup and view all the answers

When using the transition property to melt one image into another on hover, which property is typically transitioned?

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

By default, CSS transitions apply to all properties that change on an element.

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

In the melting image example, what positioning value is typically assigned to the top image to ensure proper layering over the bottom image?

<p>absolute</p> Signup and view all the answers

The value '4s' in a transition property such as transition: opacity 4s ease-in-out; represents the transition ______.

<p>duration</p> Signup and view all the answers

Match each element of the CSS transition property with its function:

<p><code>transition-property</code> = Specifies which CSS property should transition. <code>transition-duration</code> = Specifies how long the transition animation should take to complete. <code>transition-timing-function</code> = Specifies the acceleration curve of the transition.</p> Signup and view all the answers

Flashcards

text-shadow property

A CSS3 property that adds shadow effects to text.

Horizontal offset

The horizontal distance of the text shadow from the text. Negative values move the shadow to the left, positive values to the right.

Vertical offset

The vertical distance of the text shadow from the text. Negative values move the shadow up, positive values down.

Blur radius

The amount of blurring applied to the shadow. 0px creates a sharp-edged shadow.

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box-shadow

CSS3 property to add shadows around HTML elements.

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transition property

A property that creates visual effects as the state of an HTML element changes.

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transition-duration

The duration that a CSS transition should take to complete. Measured in seconds (s).

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transition-timing-function

Specifies the speed curve of the transition effect.

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:hover

A pseudo-class in CSS that selects elements when the user hovers over them.

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Study Notes

Text Shadows in CSS3

  • The CSS3 text-shadow property makes adding a text shadow effect to any text easy.
  • The text-shadow property uses four values.
    • Horizontal offset of the shadow which defines the number of pixels the text-shadow will appear either to the left or right of the text. A negative value will move the text-shadow to the left and a positive value will move the text shadow to the right.
    • Vertical offset of the shadow defines the number of pixels that the text-shadow will be shifted either up or down from the text. A negative value moves the shadow up, whereas a positive value moves it down.
    • Blur radius is the blur in pixels of the shadow. A blur-radius of 0px results in a shadow with a sharp edge and no blur. The greater the value, the greater the blurring of the edges.
    • color determines the color of the text-shadow.

Box Shadows in CSS3

  • It is possible to shadow any block-level element in CSS3.
  • Horizontal offset of the shadow defines the number of pixels that the box-shadow will appear either to the left or right of the box. A positive value moves the box-shadow to the right.
  • Vertical offset of the shadow-the number of pixels the box-shadow will be shifted up or down from the box. A positive value moves the box-shadow down.
  • Blur Radius: A blur-radius of 0px would result in a shadow with a sharp edge (no blur). The greater the value, the more the edges of the shadow are blurred.
  • Color is the box-shadow’s color.

Transitioning Between Images

  • transition property creates the visually beautiful effect of melting one image into another.
  • transition property includes three values.
    • The transition will occur on the opacity of the image.
    • The second value, 4s, is the transition-duration.
    • ease-in-out is the transition-timing-function.
  • When defining :hover with an opacity of 0, when the cursor hovers over the top image, it's opacity becomes fully transparent, revealing the bottom image directly behind it.
  • The bottom and top images are added, placing one directly behind the other.

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