.e-box {
    position: relative;
    margin: 2.5px;
    background: inherit;

    width: auto;
    height: auto;
    
    -webkit-box-pack: center;
    -ms-flex-pack: center;
    -webkit-justify-content: center;
    justify-content: center;
    -moz-box-align: center;
    align-items: center;
}