html {
  font-size: 14px;
}

@media (min-width: 768px) {
  html {
    font-size: 16px;
  }
}

html {
  position: relative;
  min-height: 100%;
}

body {
    margin-bottom: 60px;
    background-color: #eee;
    
}
.bgSizeContain {
    background-image: url("kids.jpg");
    background-size: contain;
    width: 600px;
    height: 900px;
    border: 2px solid;
    color: green;
    resize: both;
    overflow: scroll;
}