courses-subscription-button{
  display: block;
  max-width: 100%;
  margin: 10px 0;
}

.courses_s_button_small_left{
  max-width: 30%;
  float: left;
}

.courses_s_button_small_right{
  max-width: 30%;
  float: right;
}

.courses_s_button_small_center{
  max-width: 30%;
  margin: 0 auto;
}