kars
Hi
I checked the class is part of the default Joomla template, as it is template own style. With T4 class do loading so issue is not that class is absent.
It need to added in custom css as this is concept of design, In t4 you have different style and layout as well.
Example code that in the default Joomla template
.image-left .blog-item .item-image, .image-right .blog-item .item-image {
flex: 1 0 40%;
}
.image-left .blog-item, .image-right .blog-item {
flex-direction: row;
}
In T4 it use Bootstrap and different classes, Even if copied it still need changes in T4 template style as this is concept of design in T4 blank.
Each template came with different styles.