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.container {
  display: flex;
  display: -mx-flexbox; 
  display: -webkit-flex;
  flex-grow: 0; 
  -ms-flex-grow: 0; 
  -webkit-flex-grow: 0; 
  flex-wrap: wrap;
  width: 400px;
}

.element {
  flex: none;
  width: 120px;
  border: 1px solid blue;
}