.whitebg {
  background-color: rgba(255, 255, 255, 0.7);
  padding: 30px 0px 10px;
  color: #000000;
  line-height: 1.4em;
  font-size: 40px; }

.underline {
  text-decoration: none;
  position: relative; }

.underline:after {
  position: absolute;
  content: '';
  height: 18px;
  /* adjust this to move up and down. you may have to adjust the line height of the paragraph if you move it down a lot. */
  bottom: 0px;
  /****** 
  optional values below 
  ******/
  /* center - (optional) use with adjusting width   */
  margin: 0 auto;
  left: 0px;
  right: 0;
  width: 100%;
  background: pink;
  z-index: 0;
  opacity: 0.3; }