README.md

CKEditor前端样式和编辑器的样式不一致的问题

前言

这样子在使用CKEditor里面的快引用的功能，但是发现编辑器里面的快引用和我们前端页面显示的样式不一致，下图是我们编辑器里的样式

然后下图是我们页面中的样式，发现CKEditor里的快引用是无法正常显示的

后面通过查阅官方文档：传送门

文档中，给出了相应的两种解决方案

• 在前端也安装一个CKEditor编辑器
• 引入官方给定的CSS

首先对于第一种方案，官方是持否定态度的：

默认情况下，内容样式由编辑器JavaScript加载，这使得它们只在用户编辑其内容时出现，而这通常在应用程序的后端发生。如果您想在前端使用相同的样式，您可能会发现自己处于这样一种情况，需要您为此加载CKEditor，这(就性能而言)不是最好的主意。为了避免在你的前端不必要的依赖，使用一个完整的CKEditor 5内容样式列表样式表所有编辑器功能。有两种方法可以获得它

因此我们就引入给定的CSS样式

/*
 * CKEditor 5 (v15.0.0) content styles.
 * Generated on Wed, 27 Nov 2019 13:26:13 GMT.
 * For more information, check out https://ckeditor.com/docs/ckeditor5/latest/builds/guides/integration/content-styles.html
 */

:root {
    --ck-highlight-marker-blue: #72cdfd;
    --ck-highlight-marker-green: #63f963;
    --ck-highlight-marker-pink: #fc7999;
    --ck-highlight-marker-yellow: #fdfd77;
    --ck-highlight-pen-green: #118800;
    --ck-highlight-pen-red: #e91313;
    --ck-image-style-spacing: 1.5em;
    --ck-todo-list-checkmark-size: 16px;
}

/* ckeditor5-list/theme/todolist.css */
.ck-content .todo-list {
    list-style: none;
}
/* ckeditor5-list/theme/todolist.css */
.ck-content .todo-list li {
    margin-bottom: 5px;
}
/* ckeditor5-list/theme/todolist.css */
.ck-content .todo-list li .todo-list {
    margin-top: 5px;
}
/* ckeditor5-list/theme/todolist.css */
.ck-content .todo-list .todo-list__label > input {
    -webkit-appearance: none;
    display: inline-block;
    position: relative;
    width: var(--ck-todo-list-checkmark-size);
    height: var(--ck-todo-list-checkmark-size);
    vertical-align: middle;
    border: 0;
    left: -25px;
    margin-right: -15px;
    right: 0;
    margin-left: 0;
}
/* ckeditor5-list/theme/todolist.css */
.ck-content .todo-list .todo-list__label > input::before {
    display: block;
    position: absolute;
    box-sizing: border-box;
    content: '';
    width: 100%;
    height: 100%;
    border: 1px solid hsl(0, 0%, 20%);
    border-radius: 2px;
    transition: 250ms ease-in-out box-shadow, 250ms ease-in-out background, 250ms ease-in-out border;
}
/* ckeditor5-list/theme/todolist.css */
.ck-content .todo-list .todo-list__label > input::after {
    display: block;
    position: absolute;
    box-sizing: content-box;
    pointer-events: none;
    content: '';
    left: calc( var(--ck-todo-list-checkmark-size) / 3 );
    top: calc( var(--ck-todo-list-checkmark-size) / 5.3 );
    width: calc( var(--ck-todo-list-checkmark-size) / 5.3 );
    height: calc( var(--ck-todo-list-checkmark-size) / 2.6 );
    border-style: solid;
    border-color: transparent;
    border-width: 0 calc( var(--ck-todo-list-checkmark-size) / 8 ) calc( var(--ck-todo-list-checkmark-size) / 8 ) 0;
    transform: rotate(45deg);
}
/* ckeditor5-list/theme/todolist.css */
.ck-content .todo-list .todo-list__label > input[checked]::before {
    background: hsl(126, 64%, 41%);
    border-color: hsl(126, 64%, 41%);
}
/* ckeditor5-list/theme/todolist.css */
.ck-content .todo-list .todo-list__label > input[checked]::after {
    border-color: hsl(0, 0%, 100%);
}
/* ckeditor5-list/theme/todolist.css */
.ck-content .todo-list .todo-list__label .todo-list__label__description {
    vertical-align: middle;
}
/* ckeditor5-image/theme/image.css */
.ck-content .image {
    display: table;
    clear: both;
    text-align: center;
    margin: 1em auto;
}
/* ckeditor5-image/theme/image.css */
.ck-content .image > img {
    display: block;
    margin: 0 auto;
    max-width: 100%;
    min-width: 50px;
}
/* ckeditor5-block-quote/theme/blockquote.css */
.ck-content blockquote {
    overflow: hidden;
    padding-right: 1.5em;
    padding-left: 1.5em;
    margin-left: 0;
    margin-right: 0;
    font-style: italic;
    border-left: solid 5px hsl(0, 0%, 80%);
}
/* ckeditor5-block-quote/theme/blockquote.css */
.ck-content[dir="rtl"] blockquote {
    border-left: 0;
    border-right: solid 5px hsl(0, 0%, 80%);
}
/* ckeditor5-image/theme/imageresize.css */
.ck-content .image.image_resized {
    max-width: 100%;
    display: block;
    box-sizing: border-box;
}
/* ckeditor5-image/theme/imageresize.css */
.ck-content .image.image_resized img {
    width: 100%;
}
/* ckeditor5-image/theme/imageresize.css */
.ck-content .image.image_resized > figcaption {
    display: block;
}
/* ckeditor5-image/theme/imagestyle.css */
.ck-content .image-style-side,
.ck-content .image-style-align-left,
.ck-content .image-style-align-center,
.ck-content .image-style-align-right {
    max-width: 50%;
}
/* ckeditor5-image/theme/imagestyle.css */
.ck-content .image-style-side {
    float: right;
    margin-left: var(--ck-image-style-spacing);
}
/* ckeditor5-image/theme/imagestyle.css */
.ck-content .image-style-align-left {
    float: left;
    margin-right: var(--ck-image-style-spacing);
}
/* ckeditor5-image/theme/imagestyle.css */
.ck-content .image-style-align-center {
    margin-left: auto;
    margin-right: auto;
}
/* ckeditor5-image/theme/imagestyle.css */
.ck-content .image-style-align-right {
    float: right;
    margin-left: var(--ck-image-style-spacing);
}
/* ckeditor5-media-embed/theme/mediaembed.css */
.ck-content .media {
    clear: both;
    margin: 1em 0;
    display: block;
    min-width: 15em;
}
/* ckeditor5-table/theme/table.css */
.ck-content .table {
    margin: 1em auto;
    display: table;
}
/* ckeditor5-table/theme/table.css */
.ck-content .table table {
    border-collapse: collapse;
    border-spacing: 0;
    border: 1px double hsl(0, 0%, 70%);
}
/* ckeditor5-table/theme/table.css */
.ck-content .table table td,
.ck-content .table table th {
    min-width: 2em;
    padding: .4em;
    border-color: hsl(0, 0%, 85%);
}
/* ckeditor5-table/theme/table.css */
.ck-content .table table th {
    font-weight: bold;
    background: hsl(0, 0%, 98%);
}
/* ckeditor5-highlight/theme/highlight.css */
.ck-content .marker-yellow {
    background-color: var(--ck-highlight-marker-yellow);
}
/* ckeditor5-highlight/theme/highlight.css */
.ck-content .marker-green {
    background-color: var(--ck-highlight-marker-green);
}
/* ckeditor5-highlight/theme/highlight.css */
.ck-content .marker-pink {
    background-color: var(--ck-highlight-marker-pink);
}
/* ckeditor5-highlight/theme/highlight.css */
.ck-content .marker-blue {
    background-color: var(--ck-highlight-marker-blue);
}
/* ckeditor5-highlight/theme/highlight.css */
.ck-content .pen-red {
    color: var(--ck-highlight-pen-red);
    background-color: transparent;
}
/* ckeditor5-highlight/theme/highlight.css */
.ck-content .pen-green {
    color: var(--ck-highlight-pen-green);
    background-color: transparent;
}
/* ckeditor5-page-break/theme/pagebreak.css */
.ck-content .page-break {
    position: relative;
    clear: both;
    padding: 5px 0;
    display: flex;
    align-items: center;
    justify-content: center;
}
/* ckeditor5-page-break/theme/pagebreak.css */
.ck-content .page-break::after {
    content: '';
    position: absolute;
    border-bottom: 2px dashed hsl(0, 0%, 77%);
    width: 100%;
}
/* ckeditor5-page-break/theme/pagebreak.css */
.ck-content .page-break__label {
    position: relative;
    z-index: 1;
    padding: .3em .6em;
    display: block;
    text-transform: uppercase;
    border: 1px solid hsl(0, 0%, 77%);
    border-radius: 2px;
    font-family: Helvetica, Arial, Tahoma, Verdana, Sans-Serif;
    font-size: 0.75em;
    font-weight: bold;
    color: hsl(0, 0%, 20%);
    background: #fff;
    box-shadow: 2px 2px 1px hsla(0, 0%, 0%, 0.15);
    -webkit-user-select: none;
    -moz-user-select: none;
    -ms-user-select: none;
    user-select: none;
}
/* ckeditor5-basic-styles/theme/code.css */
.ck-content code {
    background-color: hsla(0, 0%, 78%, 0.3);
    padding: .15em;
    border-radius: 2px;
}
/* ckeditor5-image/theme/imagecaption.css */
.ck-content .image > figcaption {
    display: table-caption;
    caption-side: bottom;
    word-break: break-word;
    color: hsl(0, 0%, 20%);
    background-color: hsl(0, 0%, 97%);
    padding: .6em;
    font-size: .75em;
    outline-offset: -1px;
}
/* ckeditor5-horizontal-line/theme/horizontalline.css */
.ck-content hr {
    border-width: 1px 0 0;
    border-style: solid;
    border-color: hsl(0, 0%, 37%);
    margin: 0;
}
/* ckeditor5-code-block/theme/codeblock.css */
.ck-content pre {
    padding: 1em;
    color: #353535;
    background: hsla(0, 0%, 78%, 0.3);
    border: 1px solid hsl(0, 0%, 77%);
    border-radius: 2px;
    text-align: left;
    direction: ltr;
    tab-size: 4;
    white-space: pre-wrap;
    font-style: normal;
    min-width: 200px;
}
/* ckeditor5-code-block/theme/codeblock.css */
.ck-content pre code {
    background: unset;
    padding: 0;
    border-radius: 0;
}
@media print {
    /* ckeditor5-page-break/theme/pagebreak.css */
    .ck-content .page-break {
        padding: 0;
    }
    /* ckeditor5-page-break/theme/pagebreak.css */
    .ck-content .page-break::after {
        display: none;
    }
}

但是官方的CSS样式，对于h1,h2等标签没有很好的处理，因此我们再次加入自己的自定义css进去

.ck-content p {
  margin: 12px 0 !important;
}

.ck-content a {
  text-decoration: underline !important;
  color: #00e !important;
}

.ck-content ul li {
  list-style: disc;
}

.ck-content ol li {
  list-style: decimal;
}

.ck-content ul,
.ck-content ol {
  padding-left: 40px !important;
  padding-right: 40px !important;
}

.ck-content li {
  display: list-item !important;
}

.ck-content h1 {
  font-weight: bold !important;
  font-size: 32px !important;
  margin: 21px 0 !important;
}

.ck-content h2 {
  font-weight: bold !important;
  font-size: 24px !important;
  margin: 19px 0 !important;
}

.ck-content h3 {
  font-weight: bold !important;
  font-size: 19px !important;
  margin: 18px 0 !important;
}

.ck-content h4 {
  font-weight: bold !important;
  font-size: 16px !important;
  margin: 21px 0 !important;
}

.ck-content h5 {
  font-weight: bold !important;
  font-size: 13px !important;
  margin: 22px 0 !important;
}

.ck-content h6 {
  font-weight: bold !important;
  font-size: 11px !important;
  margin: 24px 0 !important;
}

添加进去后，我们就能够看到快引用已经能够正常的显示了