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【单选题】
We want to display multiple options in the select drop-down box, whichattributeshould be set? ( )
A.
width
B.
size
C.
multiple
D.
None of the above is correct.
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参考答案：
举一反三
【单选题】We want to implement multiple choices in the select drop-down box, which attribute should be set? ( )
A.
width
B.
size
C.
checkbox
D.
multiple
【单选题】In the input field, only numbers are allowed, so what should we set the value of type to? ( )
A.
number
B.
text
C.
value
D.
password
【单选题】If the conditions are not met, the user is not allowed to click the button, so what attribute should be set? ( )
A.
placeholder
B.
action
C.
disabled
D.
readonly
【单选题】To display the prompt information in the form, it will disappear automatically when the user inputs the content, so this attribute is ( ).
A.
spellcheck
B.
autocomplete
C.
pattern
D.
placeholder
【单选题】What is the attribute that makes the input element get the focus automatically when the page is loaded? ( )
A.
autocomplete
B.
autofocus
C.
placeholder
D.
required
【单选题】In <textarea>, what attribute is used to set the maximum number of characters? ( )
A.
width
B.
max
C.
size
D.
maxlength
【多选题】(Multiple-choice question) Which of the following are the new pseudo classes of css3? ( )
A.
:nth-of-type
B.
:not
C.
:empty
D.
:root
【单选题】About the form attributes, which of the following statements is incorrect? ( )
A.
The list specifies an available options list for the input field, when the user enters information in the input field, the drop-down list prompt will be automatically displayed for the user to choose from.
B.
The pattern is used to verify the contents of the input.
C.
The step sets the legal numeric interval of the input field.
D.
The size sets the maximum number of characters that can be entered into the input field.
【单选题】Accomplish a semicircle through CSS: the width of the element is 200px and the height is 100px, so which of the following codes is correct? ( )
A.
border-radius:50%
B.
border-radius:100px;
C.
border-radius:0 100px 50% 0;
D.
border-radius:100px 100px 0 0;
【单选题】Which of the following statements about animation-play-state is correct? ( )
A.
Used to set the playing status of animation.
B.
Used to set the execution time of animation.
C.
Used to set whether the animation should be played in reverse in turn.
D.
Used to set how the animation completes a cycle.
相关题目：
【单选题】We want to implement multiple choices in the select drop-down box, which attribute should be set? ( )
A.
width
B.
size
C.
checkbox
D.
multiple
【单选题】In the input field, only numbers are allowed, so what should we set the value of type to? ( )
A.
number
B.
text
C.
value
D.
password
【单选题】If the conditions are not met, the user is not allowed to click the button, so what attribute should be set? ( )
A.
placeholder
B.
action
C.
disabled
D.
readonly
【单选题】To display the prompt information in the form, it will disappear automatically when the user inputs the content, so this attribute is ( ).
A.
spellcheck
B.
autocomplete
C.
pattern
D.
placeholder
【单选题】What is the attribute that makes the input element get the focus automatically when the page is loaded? ( )
A.
autocomplete
B.
autofocus
C.
placeholder
D.
required
【单选题】In <textarea>, what attribute is used to set the maximum number of characters? ( )
A.
width
B.
max
C.
size
D.
maxlength
【多选题】(Multiple-choice question) Which of the following are the new pseudo classes of css3? ( )
A.
:nth-of-type
B.
:not
C.
:empty
D.
:root
【单选题】About the form attributes, which of the following statements is incorrect? ( )
A.
The list specifies an available options list for the input field, when the user enters information in the input field, the drop-down list prompt will be automatically displayed for the user to choose from.
B.
The pattern is used to verify the contents of the input.
C.
The step sets the legal numeric interval of the input field.
D.
The size sets the maximum number of characters that can be entered into the input field.
【单选题】Accomplish a semicircle through CSS: the width of the element is 200px and the height is 100px, so which of the following codes is correct? ( )
A.
border-radius:50%
B.
border-radius:100px;
C.
border-radius:0 100px 50% 0;
D.
border-radius:100px 100px 0 0;
【单选题】Which of the following statements about animation-play-state is correct? ( )
A.
Used to set the playing status of animation.
B.
Used to set the execution time of animation.
C.
Used to set whether the animation should be played in reverse in turn.
D.
Used to set how the animation completes a cycle.
参考解析：
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