bg red bootstrap 4 code example
Example 1: bootstrap text color
.text-primary
.text-secondary
.text-success
.text-danger
.text-warning
.text-info
.text-light
.text-dark
.text-muted
.text-white
Example 2: bootstrap bg-light color code
/* class bg-light color code is---*/
background-color:#f8f9fa;