.logic__background {
    position: absolute;
    top: 0;
    bottom: 0;
    left: 0;
    right: 0;
    background: black;
    opacity: 0.75;
    z-index: 2000;
}

.logic__content {
    position: absolute;
    top: 2em;
    bottom: 2em;
    left: 4em;
    right: 4em;
    background-color: #efefef;
    border-radius: 2px;
    z-index: 2001;
    padding: 2em;
    overflow-y: auto;
}

input.logic_element__operand--value {
    float: none;
    width: 9em;
}