No you are not suppose to learn all the different HTML5 tags and their usage(we have google for that 😂 ). That being said you have to understand most frequently used HTML5 tags like canvas, video, header etc.
Also you should be aware of all the display properties, because in every interviews they asked different question that are around display properties (i.e. flex, table, block, table, etc).
Yes, Difference between display: none; visibility: hidden; opacity: 0; is totally different question, as visibility and opacity are different CSS properties.
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No you are not suppose to learn all the different HTML5 tags and their usage(we have google for that 😂 ). That being said you have to understand most frequently used HTML5 tags like canvas, video, header etc.
Also you should be aware of all the display properties, because in every interviews they asked different question that are around display properties (i.e. flex, table, block, table, etc).
Yes,
Difference between display: none; visibility: hidden; opacity: 0;is totally different question, as visibility and opacity are different CSS properties.