Ghost/ghost/admin/app/styles/layouts/editor.css

/* Editor /ghost/editor/
/* ---------------------------------------------------------- */


/* Title
/* ---------------------------------------------------------- */

.gh-editor-title {
    flex-grow: 1;
    margin-bottom: 2vw;
    padding: 0;
    margin: 0;
    outline: none;
    position: relative;
    width: 100%;
    letter-spacing: 0.8px;
    font-weight: bold;
    font-size: 3.2rem;
    line-height: 1.3em;
    z-index: 1;
}

/* Place holder content that displays in the title if it is empty */
.gh-editor-title.no-content:before {
    content: attr(data-placeholder);
    color: color(var(--midgrey) l(+35%));
    cursor: text;
    position: absolute;
    top: 0;
    font-size: 3.2rem;
    font-weight: bold;
    line-height: 1.3em;
    min-width: 30rem; /* hack it's defaulting just to enough width for the 'Your' in 'Your Post Title' */
    z-index: -1;
}


.gh-editor-title input {
    margin: 0;
    padding: 0;
    width: 100%;
    border: 0;
    background: transparent;
    color: var(--darkgrey);
    font-size: 3.2rem;
    font-weight: bold;
    letter-spacing: 0.8px;
}

.gh-editor-title input::-webkit-input-placeholder {
    color: color(var(--midgrey) l(+25%));
    font-weight: 400;
    letter-spacing: 1.2px;
}

.gh-editor-title input:-ms-input-placeholder {
    color: color(var(--midgrey) l(+25%));
    font-weight: 400;
    letter-spacing: 1.2px;
}

.gh-editor-title input:focus {
    outline: 0;
}

.editor-options .dropdown-menu {
    top: 35px;
    right: 0;
    left: auto;
}


/* Tags input CSS (TODO: needs some revision)
/* ------------------------------------------------------ */
.tags-input-list {
    display: flex;
    flex-wrap: wrap;
    margin: 0;
    padding: 0;
    list-style-type: none;
}

.tags-input-list li {
    flex: 1 0 auto;
}

.label-tag {
    margin-right: 0.3em;
    padding: 0.2em 0.6em 0.3em;
    background-color: var(--darkgrey);
    border-radius: 0.25em;
    color: var(--lightgrey);
    text-align: center;
    font-weight: 300;
}

.label-tag.highlight {
    background: var(--midgrey);
    color: #fff;
}

.tag-input {
    margin-top: 5px;
    border: none;
    font-weight: 300;
    cursor: default;
}

.tag-input:focus {
    outline: 0;
}

.publish-bar-actions {
    flex: 1 0 auto;
    align-self: auto;
    display: flex;
    text-align: right;
}

.post-settings {
    position: relative;
    display: inline-block;
    padding: 15px;
    color: var(--midgrey);
    transition: all 0.15s ease-out 0s;
}

.post-settings:hover,
.post-settings.active {
    color: var(--darkgrey);
}

.post-settings svg {
    width: 16px;
    height: 16px;
    fill: var(--midgrey);
}

.post-settings svg:hover,
.post-settings.active svg {
    fill: var(--darkgrey);
}

.post-settings-menu .dropdown-menu {
    top: auto;
    right: 100%;
    bottom: 100%;
    left: auto;
}

.post-view-link {
    position: absolute;
    top: 1px;
    right: 0;
    font-size: 1.3rem;
}

.post-view-link svg {
    display: inline;
    height: 10px;
    width: auto;
    fill: var(--blue);
}


/* Post settings meta
/* ---------------------------------------------------------- */

/* Google Imitation */
.seo-preview {
    font-family: Arial, sans-serif;
}

.seo-preview-title {
    color: #1e0fbe;
    text-overflow: ellipses;
    word-wrap: break-word;
    font-size: 1.8rem;
    line-height: 2.16rem;

    -webkit-text-overflow: ellipsis;
}

.seo-preview-link {
    margin: 1px 0 2px 0;
    color: #006621;
    word-wrap: break-word;
    font-size: 1.3rem;
    line-height: 1.6rem;
}

.seo-preview-description {
    color: #545454;
    word-wrap: break-word;
    font-size: 1.3rem;
    line-height: 1.4;
}



/* NEW editor
/* ---------------------------------------------------------- */

.gh-editor-header {
    position: absolute;
    top: 0;
    right: 0;
    left: 0;
    z-index: 100;
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 0 30px;
    height: 80px;
}
@media (max-width: 750px) {
    .gh-editor-header { padding: 0 4vw; }
}

.gh-editor-status {
    color: var(--midgrey);
    font-weight: 300;
}

.gh-editor-container {
    position: absolute;
    overflow-y: auto;
    padding: 10vw 4vw;
    width: 100%;
    height: 100%;
}

.gh-editor-inner {
    margin: 0 auto;
    max-width: 740px;
    height: 100%;
}