To test whether an SQL expression is null, you need to use the is null operator
- An expression can be null, but it can never equal null.
- Two nulls are never equal to each other.
Turn any HTML element into a grid container
Turn any HTML element into a grid container by setting its display property to grid. This gives you the ability to use all the other properties associated with CSS Grid. In CSS Grid, the parent element is referred to as the container and its children are called items.
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