bootstrap 4 flex w-25 only lg code example
Example: how to make hr class bootstrap full width
/* It is done with the <hr> tag. Then you need to give it a class name, and adjust the margin accordingly. See below for an example.
*/
.solid {
margin: 0 -15px;
border: 0;
border-top: 1px solid #c9c7c7;
}