.block-5-titel-und-zurueck-button .container{
    display: -webkit-box;
    display: -ms-flexbox;
    display: flex;
    -webkit-box-pack: justify;
        -ms-flex-pack: justify;
            justify-content: space-between;
    -webkit-column-gap: 3rem;
       -moz-column-gap: 3rem;
            column-gap: 3rem;
    row-gap: 3rem;
}

.block-5-titel-und-zurueck-button .container:before,
.block-5-titel-und-zurueck-button .container:after{
    display: none;
}