.editor-pane {
    position: fixed;
    z-index: 1;
    width: 400px;
    height: calc(100% - 66px);
    background: white;
    overflow-y: auto;
    border-right: 1px solid grey;
    transition: transform 0.5s;
}

.not-visible .editor-pane {
    transform: translateX(-400px);
}

@media only screen and (max-width: 600px) {

    .editor-pane {
        width: 100%;
        height: calc(100% - 58px);
    }

    .not-visible .editor-pane {
        transform: translateX(-100%);
    }
}

.editor-highlighted {
    border: 2px dotted royalblue;
    border-radius: 5px;
}

[contenteditable] {
    outline: 0px solid transparent;
}