.block-editor-writing-flow 
{
    overflow: hidden;
    background-color: #F1F2F4;
}

@media (min-width: 992px)
{
    .block-editor-writing-flow::before {
        content: "";
        display: block;
        background-image: url(/wp-content/themes/theme-cooplote/assets/build/images/wave-complet.svg);
        position: absolute;
        top: 0px;
        right: 0px;
        width: 50%;
        height: 100%;
        z-index: 1;
        background-position: -90% -240px;
        background-repeat: repeat-y;
        background-attachment: scroll;
        opacity: 1;
        background-size: 200%;
    }
}

.block-editor-writing-flow::after {
    content: "";
    display: block;
    background-image: url(/wp-content/themes/theme-cooplote/assets/build/images/wave-complet.svg);
    position: absolute;
    top: 0px;
    left: 0px;
    width: 50%;
    height: 100%;
    z-index: 1;
    background-position: 100% -240px;
    background-repeat: repeat-y;
    background-attachment: scroll;
    opacity: 1;
    background-size: 200%;
}

.block-editor-writing-flow > * 
{
    z-index: 5;
    position: relative;
}