is bem css good code example
Example: bem css
/* Block component */
.btn {}
/* Element that depends upon the block */
.btn__price {}
/* Modifier that changes the style of the block */
.btn--orange {}
.btn--big {}
/* Block component */
.btn {}
/* Element that depends upon the block */
.btn__price {}
/* Modifier that changes the style of the block */
.btn--orange {}
.btn--big {}