.split {
    width: 100%;
    float: left;
}

.split .left {
    float: left;
    width: 45%;
    /* max-width: 400px; */

  /* height: 100px; */
    display: flex;
    flex-direction: column;
    justify-content: center; 
    align-items: center;
}

.split .right {
    float: left;
    width: 55%;
}