body {
  background-color: #FFFFEE;
}

ul.thumbnail-list {
  list-style-type: none;
  padding: 0;
}
li {
  display: inline;
}

.index {
  margin-left: auto;
  margin-right: auto;
  text-align: center;
  /*fit inside a 1024 monitor.*/
  max-width: 950px
}

.thumbnail-cntr {
  background-color: #2c1fc0;
  border-style: solid;
  border-width: 2px;
  border-color: #2c1fc0;
  border-radius: 10px;
  display: inline-block;
  height: 160px;
  margin: 3px;
  padding: 0;
  text-align: center;
  width: 160px;
}

.thumbnail-cntr:hover {
  border-color: #9c99bf;
}

img.thumbnail {
  width: 160px;
  height: 160px;
  border-radius: 8px;
}
body {
  background-color: #FFFFEE;
  margin: 0
}

ul.thumbnail-list {
  list-style-type: none;
  padding: 0;
}

li {
  display: inline;
}

.index {
  margin-left: auto;
  margin-right: auto;
  text-align: center;
  /*fit inside a 1024 monitor.*/
  max-width: 950px
}

.thumbnail-cntr {
  background-color: #2c1fc0;
  border-style: solid;
  border-width: 2px;
  border-color: #2c1fc0;
  border-radius: 10px;
  display: inline-block;
  height: 160px;
  margin: 3px;
  padding: 0;
  text-align: center;
  width: 160px;
}

.thumbnail-cntr:hover {
  border-color: #9c99bf;
}

img.thumbnail {
  width: 160px;
  height: 160px;
  border-radius: 8px;
}
Reduce margin to 0, which bring the page width down. This makes two pics on the index fit exactly onto a 360px wide screen, such as a phone
Reduce margin to 0, which bring the page width down.  This makes two pics on the index fit exactly onto a 360px wide screen, such as a phone
