Adjusting Height

With the help of the following site https://benmarshall.me/responsive-iframes/ i was able to make adjustment to my audiomack container.

Add the following code to the custom css section on the theme customization page and adjust the height value as needed:

.audiomack_player_container {
  overflow: hidden;
  /* Calculated from the aspect ration of the content (in case of 16:9 it is 9/16= 0.5625)*/
  padding-top: 56.25%;
  position: relative;
}
 
.audiomack_player_container iframe {
   border: 0;
   height: 88%;
   left: 0;
   position: absolute;
   top: 0;
   }