.image70b {
   float : right;
  width : 80%;
  height : 80%;
  max-width : 250px;
  margin-left :  1%;
  margin-right : auto;
  padding : 10px;
  border : #000000 solid 2px;
  border-radius : 8px;
  }
img.displayed2big {
  display : block;
  max-width : 75%;
  <!-- min-width : 200px; -->
  margin-left : auto;
  margin-right : auto;
  padding : 10px;
  border : #000000 solid 1px;
  border-radius : 8px;
  }
  /* note this coding will work for text as well just change the image properties to text */
  .tooltip {
    position: relative;
    display: inline-block;
    border-bottom: 1px dotted black;
  }

  .tooltip .tooltiptext {
    visibility: hidden;
    width: 300px;
    background-color: #555;
    color: #fff;
    text-align: center;
    border-radius: 6px;
    padding: 5px 0;
    position: absolute;
    z-index: 1;
    bottom: 50%;
    left: 50%;
    margin-left: -60px;
    opacity: 0;
    transition: opacity 1s;
  }

  .tooltip .tooltiptext::after {
    content: "";
    position: absolute;
    top: 100%;
    left: 50%;
    margin-left: -5px;
    border-width: 5px;
    border-style: solid;
    border-color: #555 transparent transparent transparent;
  }

  .tooltip:hover .tooltiptext {
    visibility: visible;
    opacity: 1;
  }