.readmore {
    background: deeppink;
    position: relative;
    padding-right: calc(50% + 2em);
}


figure {
    width: 50%;
    position: absolute;
    height: 100%;
    top: 0;
    right: 0;
    background: pink;
    margin: 0;
    display: flex;
    justify-content: start;
    align-items: start;
}