Flex Example

HTML

<div class="container">
    <div>Div 1</div>
    <div>Div 2</div>
    <div>Div 3</div>
    <div>Div 4</div>
</div>

CSS

.container {
    padding: 20px;
    display : flex;
   flex-flow: row wrap;
   background:white;
   justify-content: space-evenly;
}

.container > div {
    border: 1px solid black;
    background: #ececec;
    margin:5px;
    min-width:200px;
    padding: 10px;
    margin-left: 10px;
    /* flex: 1; */
}
@media ( min-width: 768px ) and ( max-width: 992px ) {
  .container {
    justify-content: flex-start;
  }
}