Pegasystems Most Frequently Asked Latest CSS Interview Questions Answers
Define Image sprites with context to CSS ?
When a set of images is collaborated into one image, it is known as ‘Image Sprites’. As the loading every image on a webpage consumes time, using image sprites lessens the time taken and gives information quickly.
CSS coding:
img.add { width: 60px; height: 55px; background: url (image.god) 0 0; }
1
img.add { width: 60px; height: 55px; background: url (image.god) 0 0; }
In this case, only the part needed is used. The user can save substantial margin and time through this.
Compare Grouping and Nesting in CSS ?
Grouping: Selectors can be grouped having the same values of property and the code be reduced.
E.g. :
h1 {
color: blue;
}
h2 {
color: blue;
}
p {
color: blue;
}
h1 {
color: blue;
}
h2 {
color: blue;
}
p {
color: blue;
}
It can be seen from the code that every element shares the same property. Rewriting can be avoided by writing each selector separated by a comma.
Nesting: Specifying a selector within a selector is called nesting.
P
{
color: red;
text-align: left;
}
.marked
{
background-color: blue;
}
.marked p
{
color: green;
}
25
P
{
color: red;
text-align: left;
}
.marked
{
background-color: blue;
}
.marked p
{
color: green;
}
How can the dimension be defined of an element ?
Dimension properties can be defined by:
Height
Max-height
Max-width
Min-height
Min-width
Width
Define float property of CSS?
By float property, the image can be moved to the right or the left along with the text to be wrapped around it. Elements before this property is applied do not change their properties.
How does Z index function?
Overlapping may occur while using CSS for positioning HTML elements. Z index helps in specifying the overlapping element. It is a number which can be positive or negative, the default value being zero.
Define Attribute Selector ?
It is defined by a set of elements, value and its parts.
What Is A Child Selector?
Consider the following example
body > p
{
color: #000000;
}
This rule will render all the paragraphs in black if they are direct child ofelement. Other paragraphs put inside other elements like or would not have any effect of this rule.
What Is An Attribute Selector?
You can also apply styles to HTML elements with particular attributes. The style rule below will match all the input elements having a type attribute with a value of text
input[type = "text"]
{
color: #000000;
}
The advantage to this method is that the element is unaffected, and the color applied only to the desired text fields.
How To Select All Paragraph Elements With A Lang Attribute?
p[lang] : Selects all paragraph elements with a lang attribute.
How To Select All Paragraph Elements Whose Lang Attribute Has A Value Of Exactly "fr"?
p[lang="fr"] - Selects all paragraph elements whose lang attribute has a value of exactly "fr".
How To Select All Paragraph Elements Whose Lang Attribute Contains The Word "fr"?
p[lang~="fr"] - Selects all paragraph elements whose lang attribute contains the word "fr".
How To Select All Paragraph Elements Whose Lang Attribute Contains Values That Are Exactly "en", Or Begin With "en-"?
p[lang|="en"] - Selects all paragraph elements whose lang attribute contains values that are exactly "en", or begin with "en-".
Define Image sprites with context to CSS ?
When a set of images is collaborated into one image, it is known as ‘Image Sprites’. As the loading every image on a webpage consumes time, using image sprites lessens the time taken and gives information quickly.
CSS coding:
img.add { width: 60px; height: 55px; background: url (image.god) 0 0; }
1
img.add { width: 60px; height: 55px; background: url (image.god) 0 0; }
In this case, only the part needed is used. The user can save substantial margin and time through this.
Compare Grouping and Nesting in CSS ?
Grouping: Selectors can be grouped having the same values of property and the code be reduced.
E.g. :
h1 {
color: blue;
}
h2 {
color: blue;
}
p {
color: blue;
}
h1 {
color: blue;
}
h2 {
color: blue;
}
p {
color: blue;
}
It can be seen from the code that every element shares the same property. Rewriting can be avoided by writing each selector separated by a comma.
Nesting: Specifying a selector within a selector is called nesting.
P
{
color: red;
text-align: left;
}
.marked
{
background-color: blue;
}
.marked p
{
color: green;
}
25
P
{
color: red;
text-align: left;
}
.marked
{
background-color: blue;
}
.marked p
{
color: green;
}
How can the dimension be defined of an element ?
Dimension properties can be defined by:
Height
Max-height
Max-width
Min-height
Min-width
Width
 |
| Pegasystems Most Frequently Asked Latest CSS Interview Questions Answers |
Define float property of CSS?
By float property, the image can be moved to the right or the left along with the text to be wrapped around it. Elements before this property is applied do not change their properties.
How does Z index function?
Overlapping may occur while using CSS for positioning HTML elements. Z index helps in specifying the overlapping element. It is a number which can be positive or negative, the default value being zero.
It is defined by a set of elements, value and its parts.
What Is A Child Selector?
Consider the following example
body > p
{
color: #000000;
}
This rule will render all the paragraphs in black if they are direct child ofelement. Other paragraphs put inside other elements like or would not have any effect of this rule.
What Is An Attribute Selector?
You can also apply styles to HTML elements with particular attributes. The style rule below will match all the input elements having a type attribute with a value of text
input[type = "text"]
{
color: #000000;
}
The advantage to this method is that the element is unaffected, and the color applied only to the desired text fields.
How To Select All Paragraph Elements With A Lang Attribute?
p[lang] : Selects all paragraph elements with a lang attribute.
How To Select All Paragraph Elements Whose Lang Attribute Has A Value Of Exactly "fr"?
p[lang="fr"] - Selects all paragraph elements whose lang attribute has a value of exactly "fr".
How To Select All Paragraph Elements Whose Lang Attribute Contains The Word "fr"?
p[lang~="fr"] - Selects all paragraph elements whose lang attribute contains the word "fr".
How To Select All Paragraph Elements Whose Lang Attribute Contains Values That Are Exactly "en", Or Begin With "en-"?
p[lang|="en"] - Selects all paragraph elements whose lang attribute contains values that are exactly "en", or begin with "en-".
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