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【单选题】
In CSS style, the meaning of background-position:-10px 20px is ( ).
A.
The background image is shifted to the right by 10px and upward by 20px.
B.
The background image is shifted to the right by 10px and downward by 20px.
C.
The background image is shifted to the left by 10px and upward by 20px.
D.
The background image is shifted to the left by 10px and downward by 20px.
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参考答案：
举一反三
【单选题】Regarding the following css codes, which of following is incorrect? ( )<p style="border : 1px solid red;font-size: 10px; background-color: green">
A.
The background color of the paragraph is red.
B.
The border size of the paragraph is 1px.
C.
The font size of the paragraph is 10px.
D.
The border color of the paragraph is red.
【单选题】In css, we use ( ) to set the stacking order of elements, by default, its value is ( ).
A.
z-index 0
B.
x-index 0
C.
z-index 1
D.
x-index 1
【单选题】Which of the following statements about relative position is incorrect? ( )
A.
Relative position means moving relative to the element itself.
B.
After moving the relative position element, the original space occupied by it will not change.
C.
Only after setting the relative position, top, left, right, bottom, and z-index will take effect.
D.
We can useposition:relative to set the relative position of the html element.
【单选题】Which of the following statements about absolute position is correct? ( )
A.
You can useposition:fixedto set absolute position.
B.
The location of an absolute position element is relative to its parent element.
C.
The location of an absolute position element may be relative to <html>.
D.
Absolute position makes the element occupy the original space.
【单选题】Which of the following items does not belong to the position attribute? ( )
A.
relative
B.
absolute
C.
fixed
D.
auto
【单选题】In css, to align the box vertically with the center of the page, please fill in the blank space, which option is correct? ( ).box{ position: ; top:0; bottom:0; left:0; right:0; margin: ; width: 300px...
A.
absolute 50%
B.
absolute auto
C.
relative 50%
D.
relative auto
【单选题】Which of the following statements about fixed position element is wrong? ( )
A.
The elementposition relative to the browser window is fixed.
B.
Fixed position element cannot overlap with other elements.
C.
Fixed position makes the position of the element independent of the document flow.
D.
Fixed position makes the element occupy no space.
相关题目：
【单选题】Regarding the following css codes, which of following is incorrect? ( )<p style="border : 1px solid red;font-size: 10px; background-color: green">
A.
The background color of the paragraph is red.
B.
The border size of the paragraph is 1px.
C.
The font size of the paragraph is 10px.
D.
The border color of the paragraph is red.
【单选题】In css, we use ( ) to set the stacking order of elements, by default, its value is ( ).
A.
z-index 0
B.
x-index 0
C.
z-index 1
D.
x-index 1
【单选题】Which of the following statements about relative position is incorrect? ( )
A.
Relative position means moving relative to the element itself.
B.
After moving the relative position element, the original space occupied by it will not change.
C.
Only after setting the relative position, top, left, right, bottom, and z-index will take effect.
D.
We can useposition:relative to set the relative position of the html element.
【单选题】Which of the following statements about absolute position is correct? ( )
A.
You can useposition:fixedto set absolute position.
B.
The location of an absolute position element is relative to its parent element.
C.
The location of an absolute position element may be relative to <html>.
D.
Absolute position makes the element occupy the original space.
【单选题】Which of the following items does not belong to the position attribute? ( )
A.
relative
B.
absolute
C.
fixed
D.
auto
【单选题】In css, to align the box vertically with the center of the page, please fill in the blank space, which option is correct? ( ).box{ position: ; top:0; bottom:0; left:0; right:0; margin: ; width: 300px...
A.
absolute 50%
B.
absolute auto
C.
relative 50%
D.
relative auto
【单选题】Which of the following statements about fixed position element is wrong? ( )
A.
The elementposition relative to the browser window is fixed.
B.
Fixed position element cannot overlap with other elements.
C.
Fixed position makes the position of the element independent of the document flow.
D.
Fixed position makes the element occupy no space.
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