Which of the following rules inside the @keyframes is valid code for moving an item by 100px from top to bottom, assuming elements have an absolute position. Select all that apply.1 pointfrom {top:0px;} to {top:100px;}from {bottom:100px;} to {bottom:0px;}from {top:0px;} to {bottom:100px;}None of the above
Question
Which of the following rules inside the @keyframes is valid code for moving an item by 100px from top to bottom, assuming elements have an absolute position. Select all that apply.1 pointfrom {top:0px;} to {top:100px;}from {bottom:100px;} to {bottom:0px;}from {top:0px;} to {bottom:100px;}None of the above
Solution
The valid code for moving an item by 100px from top to bottom, assuming elements have an absolute position, is:
- from {top:0px;} to {top:100px;}
This is because in CSS, the 'top' property specifies the top position of an element along the y-axis. The animation will move the element from 'top: 0px' (the start position) to 'top: 100px' (the end position), effectively moving it 100px downwards.
The other options are not valid:
- from {bottom:100px;} to {bottom:0px;} is not valid because it would move the item from bottom to top, not top to bottom.
- from {top:0px;} to {bottom:100px;} is not valid because 'bottom' and 'top' are not interchangeable properties. They refer to different sides of the element's containing block.
- 'None of the above' is not valid because the first option is a valid code.
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