.button.is-rounded {
    border-radius: 290486px;
    background-color: #000000;
    color: white;;
  }
  
  .field.has-addons .control:first-child .is-rounded {
    border-bottom-left-radius: 290486px;
    border-top-left-radius: 290486px;
  }
  .field.has-addons .control:last-child .is-rounded {
    border-bottom-right-radius: 290486px;
    border-top-right-radius: 290486px;
  }