javascript - 是否可以将 CSS 应用于字符的一半？

Question

我在找什么:

一种风格的方法半 的一个字符。 (在这种情况下，一半的字母是透明的)

我目前搜索并尝试过的内容(没有运气):

半个字符/字母的样式设置方法

使用 CSS 或 JavaScript 对字符的一部分进行样式设置

将 CSS 应用于字符的 50%

下面是我试图获得的一个例子。



是否存在 CSS 或 JavaScript 解决方案，或者我将不得不求助于图像？我不想走图像路线，因为这个文本最终会动态生成。

更新:

既然很多人问我为什么要设计 Angular 色的一半，这就是原因。我的城市最近花了 250,000 美元为自己定义一个新的“品牌”。这个 logo 是他们想出的。许多人提示简单和缺乏创造力，并继续这样做。我的目标是想出这个 website 作为一个笑话。输入“哈利法克斯”，你就会明白我的意思。

Answer 1

Now on GitHub as a Plugin!

随意 fork 和改进。

Demo | Download Zip | Half-Style.com (重定向到 GitHub)

纯 CSS 对于单个字符

JavaScript 用于跨文本或多个字符的自动化

为盲人或视觉上的屏幕阅读器保留文本可访问性
受损

第 1 部分:基本解决方案



演示: http://jsfiddle.net/arbel/pd9yB/1694/

这适用于任何动态文本或单个字符，并且都是自动化的。您需要做的就是在目标文本上添加一个类，剩下的就交给我们了。

此外，为盲人或视障人士的屏幕阅读器保留了原始文本的可访问性。

单个字符的解释:

纯 CSS。您只需申请 .halfStyle类添加到包含您想要半样式的字符的每个元素。

对于每个包含字符的 span 元素，您可以创建一个数据属性，例如这里 data-content="X" , 在伪元素上使用 content: attr(data-content);所以 .halfStyle:before类将是动态的，您不需要为每个实例硬编码它。

任何文本的解释:

只需添加 textToHalfStyle类到包含文本的元素。

// jQuery for automated mode
jQuery(function($) {
    var text, chars, $el, i, output;

    // Iterate over all class occurences
    $('.textToHalfStyle').each(function(idx, el) {
    $el = $(el);
    text = $el.text();
    chars = text.split('');

    // Set the screen-reader text
    $el.html('<span style="position: absolute !important;clip: rect(1px 1px 1px 1px);clip: rect(1px, 1px, 1px, 1px);">' + text + '</span>');

    // Reset output for appending
    output = '';

    // Iterate over all chars in the text
    for (i = 0; i < chars.length; i++) {
        // Create a styled element for each character and append to container
        output += '<span aria-hidden="true" class="halfStyle" data-content="' + chars[i] + '">' + chars[i] + '</span>';
    }

    // Write to DOM only once
    $el.append(output);
  });
});

.halfStyle {
    position: relative;
    display: inline-block;
    font-size: 80px; /* or any font size will work */
    color: black; /* or transparent, any color */
    overflow: hidden;
    white-space: pre; /* to preserve the spaces from collapsing */
}

.halfStyle:before {
    display: block;
    z-index: 1;
    position: absolute;
    top: 0;
    left: 0;
    width: 50%;
    content: attr(data-content); /* dynamic content for the pseudo element */
    overflow: hidden;
    color: #f00;
}

<script src="https://ajax.googleapis.com/ajax/libs/jquery/1.11.1/jquery.min.js"></script>

<p>Single Characters:</p>
<span class="halfStyle" data-content="X">X</span>
<span class="halfStyle" data-content="Y">Y</span>
<span class="halfStyle" data-content="Z">Z</span>
<span class="halfStyle" data-content="A">A</span>

<hr/>
<p>Automated:</p>

<span class="textToHalfStyle">Half-style, please.</span>

( JSFiddle demo)

第 2 部分:高级解决方案 - 独立的左右部件



使用此解决方案，您可以单独和独立地设置左右部件的样式 .

一切都是一样的，只有更高级的 CSS 才能发挥作用。

jQuery(function($) {
    var text, chars, $el, i, output;

    // Iterate over all class occurences
    $('.textToHalfStyle').each(function(idx, el) {
        $el = $(el);
        text = $el.text();
        chars = text.split('');

        // Set the screen-reader text
        $el.html('<span style="position: absolute !important;clip: rect(1px 1px 1px 1px);clip: rect(1px, 1px, 1px, 1px);">' + text + '</span>');

        // Reset output for appending
        output = '';

        // Iterate over all chars in the text
        for (i = 0; i < chars.length; i++) {
            // Create a styled element for each character and append to container
            output += '<span aria-hidden="true" class="halfStyle" data-content="' + chars[i] + '">' + chars[i] + '</span>';
        }

        // Write to DOM only once
        $el.append(output);
    });
});

.halfStyle {
    position: relative;
    display: inline-block;
    font-size: 80px; /* or any font size will work */
    color: transparent; /* hide the base character */
    overflow: hidden;
    white-space: pre; /* to preserve the spaces from collapsing */
}

.halfStyle:before { /* creates the left part */
    display: block;
    z-index: 1;
    position: absolute;
    top: 0;
    width: 50%;
    content: attr(data-content); /* dynamic content for the pseudo element */
    overflow: hidden;
    pointer-events: none; /* so the base char is selectable by mouse */
    color: #f00; /* for demo purposes */
    text-shadow: 2px -2px 0px #af0; /* for demo purposes */
}

.halfStyle:after { /* creates the right part */
    display: block;
    direction: rtl; /* very important, will make the width to start from right */
    position: absolute;
    z-index: 2;
    top: 0;
    left: 50%;
    width: 50%;
    content: attr(data-content); /* dynamic content for the pseudo element */
    overflow: hidden;
    pointer-events: none; /* so the base char is selectable by mouse */
    color: #000; /* for demo purposes */
    text-shadow: 2px 2px 0px #0af; /* for demo purposes */
}

<script src="https://ajax.googleapis.com/ajax/libs/jquery/1.11.1/jquery.min.js"></script>
<p>Single Characters:</p>
<span class="halfStyle" data-content="X">X</span>
<span class="halfStyle" data-content="Y">Y</span>
<span class="halfStyle" data-content="Z">Z</span>
<span class="halfStyle" data-content="A">A</span>

<hr/>
<p>Automated:</p>

<span class="textToHalfStyle">Half-style, please.</span>

( JSFiddle demo)



第 3 部分:混合搭配和改进

现在我们知道什么是可能的，让我们创建一些变化。

-水平半部分

没有文字阴影:

每个半部分独立的文本阴影的可能性:

// jQuery for automated mode
jQuery(function($) {
    var text, chars, $el, i, output;

    // Iterate over all class occurences
    $('.textToHalfStyle').each(function(idx, el) {
        $el = $(el);
        text = $el.text();
        chars = text.split('');

        // Set the screen-reader text
        $el.html('<span style="position: absolute !important;clip: rect(1px 1px 1px 1px);clip: rect(1px, 1px, 1px, 1px);">' + text + '</span>');

        // Reset output for appending
        output = '';

        // Iterate over all chars in the text
        for (i = 0; i < chars.length; i++) {
            // Create a styled element for each character and append to container
            output += '<span aria-hidden="true" class="halfStyle" data-content="' + chars[i] + '">' + chars[i] + '</span>';
        }

        // Write to DOM only once
        $el.append(output);
    });
});

.halfStyle {
  position: relative;
  display: inline-block;
  font-size: 80px; /* or any font size will work */
  color: transparent; /* hide the base character */
  overflow: hidden;
  white-space: pre; /* to preserve the spaces from collapsing */
}

.halfStyle:before { /* creates the top part */
  display: block;
  z-index: 2;
  position: absolute;
  top: 0;
  height: 50%;
  content: attr(data-content); /* dynamic content for the pseudo element */
  overflow: hidden;
  pointer-events: none; /* so the base char is selectable by mouse */
  color: #f00; /* for demo purposes */
  text-shadow: 2px -2px 0px #af0; /* for demo purposes */
}

.halfStyle:after { /* creates the bottom part */
  display: block;
  position: absolute;
  z-index: 1;
  top: 0;
  height: 100%;
  content: attr(data-content); /* dynamic content for the pseudo element */
  overflow: hidden;
  pointer-events: none; /* so the base char is selectable by mouse */
  color: #000; /* for demo purposes */
  text-shadow: 2px 2px 0px #0af; /* for demo purposes */
}

<script src="https://ajax.googleapis.com/ajax/libs/jquery/1.11.1/jquery.min.js"></script>
<p>Single Characters:</p>
<span class="halfStyle" data-content="X">X</span>
<span class="halfStyle" data-content="Y">Y</span>
<span class="halfStyle" data-content="Z">Z</span>
<span class="halfStyle" data-content="A">A</span>

<hr/>
<p>Automated:</p>

<span class="textToHalfStyle">Half-style, please.</span>

( JSFiddle demo)



-垂直 1/3 零件

没有文字阴影:

每个 1/3 部分独立的文本阴影的可能性:

// jQuery for automated mode
jQuery(function($) {
    var text, chars, $el, i, output;

    // Iterate over all class occurences
    $('.textToHalfStyle').each(function(idx, el) {
    $el = $(el);
    text = $el.text();
    chars = text.split('');

    // Set the screen-reader text
    $el.html('<span style="position: absolute !important;clip: rect(1px 1px 1px 1px);clip: rect(1px, 1px, 1px, 1px);">' + text + '</span>');

    // Reset output for appending
    output = '';

    // Iterate over all chars in the text
    for (i = 0; i < chars.length; i++) {
        // Create a styled element for each character and append to container
        output += '<span aria-hidden="true" class="halfStyle" data-content="' + chars[i] + '">' + chars[i] + '</span>';
    }

    // Write to DOM only once
    $el.append(output);
  });
});

.halfStyle { /* base char and also the right 1/3 */
    position: relative;
    display: inline-block;
    font-size: 80px; /* or any font size will work */
    color: transparent; /* hide the base character */
    overflow: hidden;
    white-space: pre; /* to preserve the spaces from collapsing */
    color: #f0f; /* for demo purposes */
    text-shadow: 2px 2px 0px #0af; /* for demo purposes */
}

.halfStyle:before { /* creates the left 1/3 */
    display: block;
    z-index: 2;
    position: absolute;
    top: 0;
    width: 33.33%;
    content: attr(data-content); /* dynamic content for the pseudo element */
    overflow: hidden;
    pointer-events: none; /* so the base char is selectable by mouse */
    color: #f00; /* for demo purposes */
    text-shadow: 2px -2px 0px #af0; /* for demo purposes */
}

.halfStyle:after { /* creates the middle 1/3 */
    display: block;
    z-index: 1;
    position: absolute;
    top: 0;
    width: 66.66%;
    content: attr(data-content); /* dynamic content for the pseudo element */
    overflow: hidden;
    pointer-events: none; /* so the base char is selectable by mouse */
    color: #000; /* for demo purposes */
    text-shadow: 2px 2px 0px #af0; /* for demo purposes */
}

<script src="https://ajax.googleapis.com/ajax/libs/jquery/1.11.1/jquery.min.js"></script>

<p>Single Characters:</p>
<span class="halfStyle" data-content="X">X</span>
<span class="halfStyle" data-content="Y">Y</span>
<span class="halfStyle" data-content="Z">Z</span>
<span class="halfStyle" data-content="A">A</span>

<hr/>
<p>Automated:</p>

<span class="textToHalfStyle">Half-style, please.</span>

( JSFiddle demo)



-水平 1/3 零件

没有文字阴影:

每个 1/3 部分独立的文本阴影的可能性:

// jQuery for automated mode
jQuery(function($) {
    var text, chars, $el, i, output;

    // Iterate over all class occurences
    $('.textToHalfStyle').each(function(idx, el) {
    $el = $(el);
    text = $el.text();
    chars = text.split('');

    // Set the screen-reader text
    $el.html('<span style="position: absolute !important;clip: rect(1px 1px 1px 1px);clip: rect(1px, 1px, 1px, 1px);">' + text + '</span>');

    // Reset output for appending
    output = '';

    // Iterate over all chars in the text
    for (i = 0; i < chars.length; i++) {
        // Create a styled element for each character and append to container
        output += '<span aria-hidden="true" class="halfStyle" data-content="' + chars[i] + '">' + chars[i] + '</span>';
    }

    // Write to DOM only once
    $el.append(output);
  });
});

.halfStyle { /* base char and also the bottom 1/3 */
  position: relative;
  display: inline-block;
  font-size: 80px; /* or any font size will work */
  color: transparent;
  overflow: hidden;
  white-space: pre; /* to preserve the spaces from collapsing */
  color: #f0f;
  text-shadow: 2px 2px 0px #0af; /* for demo purposes */
}

.halfStyle:before { /* creates the top 1/3 */
  display: block;
  z-index: 2;
  position: absolute;
  top: 0;
  height: 33.33%;
  content: attr(data-content); /* dynamic content for the pseudo element */
  overflow: hidden;
  pointer-events: none; /* so the base char is selectable by mouse */
  color: #f00; /* for demo purposes */
  text-shadow: 2px -2px 0px #fa0; /* for demo purposes */
}

.halfStyle:after { /* creates the middle 1/3 */
  display: block;
  position: absolute;
  z-index: 1;
  top: 0;
  height: 66.66%;
  content: attr(data-content); /* dynamic content for the pseudo element */
  overflow: hidden;
  pointer-events: none; /* so the base char is selectable by mouse */
  color: #000; /* for demo purposes */
  text-shadow: 2px 2px 0px #af0; /* for demo purposes */
}

<script src="https://ajax.googleapis.com/ajax/libs/jquery/1.11.1/jquery.min.js"></script>
<p>Single Characters:</p>
<span class="halfStyle" data-content="X">X</span>
<span class="halfStyle" data-content="Y">Y</span>
<span class="halfStyle" data-content="Z">Z</span>
<span class="halfStyle" data-content="A">A</span>

<hr/>
<p>Automated:</p>

<span class="textToHalfStyle">Half-style, please.</span>

( JSFiddle demo)



-HalfStyle改进@KevinGranger

// jQuery for automated mode
jQuery(function($) {
    var text, chars, $el, i, output;

    // Iterate over all class occurences
    $('.textToHalfStyle').each(function(idx, el) {
    $el = $(el);
    text = $el.text();
    chars = text.split('');

    // Set the screen-reader text
    $el.html('<span style="position: absolute !important;clip: rect(1px 1px 1px 1px);clip: rect(1px, 1px, 1px, 1px);">' + text + '</span>');

    // Reset output for appending
    output = '';

    // Iterate over all chars in the text
    for (i = 0; i < chars.length; i++) {
        // Create a styled element for each character and append to container
        output += '<span aria-hidden="true" class="halfStyle" data-content="' + chars[i] + '">' + chars[i] + '</span>';
    }

    // Write to DOM only once
    $el.append(output);
  });
});

body {
    background-color: black;
}

.textToHalfStyle {
    display: block;
    margin: 200px 0 0 0;
    text-align: center;
}

.halfStyle {
    font-family: 'Libre Baskerville', serif;
    position: relative;
    display: inline-block;
    width: 1;
    font-size: 70px;
    color: black;
    overflow: hidden;
    white-space: pre;
    text-shadow: 1px 2px 0 white;
}

.halfStyle:before {
    display: block;
    z-index: 1;
    position: absolute;
    top: 0;
    width: 50%;
    content: attr(data-content); /* dynamic content for the pseudo element */
    overflow: hidden;
    color: white;
}

<script src="https://ajax.googleapis.com/ajax/libs/jquery/1.11.1/jquery.min.js"></script>
<p>Single Characters:</p>
<span class="halfStyle" data-content="X">X</span>
<span class="halfStyle" data-content="Y">Y</span>
<span class="halfStyle" data-content="Z">Z</span>
<span class="halfStyle" data-content="A">A</span>

<hr/>
<p>Automated:</p>

<span class="textToHalfStyle">Half-style, please.</span>

( JSFiddle demo)


-由 @SamTremaine改进HalfStyle的PeelingStyle

// jQuery for automated mode
jQuery(function($) {
    var text, chars, $el, i, output;

    // Iterate over all class occurences
    $('.textToHalfStyle').each(function(idx, el) {
    $el = $(el);
    text = $el.text();
    chars = text.split('');

    // Set the screen-reader text
    $el.html('<span style="position: absolute !important;clip: rect(1px 1px 1px 1px);clip: rect(1px, 1px, 1px, 1px);">' + text + '</span>');

    // Reset output for appending
    output = '';

    // Iterate over all chars in the text
    for (i = 0; i < chars.length; i++) {
        // Create a styled element for each character and append to container
        output += '<span aria-hidden="true" class="halfStyle" data-content="' + chars[i] + '">' + chars[i] + '</span>';
    }

    // Write to DOM only once
    $el.append(output);
  });
});

.halfStyle {
    position: relative;
    display: inline-block;
    font-size: 68px;
    color: rgba(0, 0, 0, 0.8);
    overflow: hidden;
    white-space: pre;
    transform: rotate(4deg);
    text-shadow: 2px 1px 3px rgba(0, 0, 0, 0.3);
}

.halfStyle:before { /* creates the left part */
    display: block;
    z-index: 1;
    position: absolute;
    top: -0.5px;
    left: -3px;
    width: 100%;
    content: attr(data-content);
    overflow: hidden;
    pointer-events: none;
    color: #FFF;
    transform: rotate(-4deg);
    text-shadow: 0px 0px 1px #000;
}

<script src="https://ajax.googleapis.com/ajax/libs/jquery/1.11.1/jquery.min.js"></script>
<p>Single Characters:</p>
<span class="halfStyle" data-content="X">X</span>
<span class="halfStyle" data-content="Y">Y</span>
<span class="halfStyle" data-content="Z">Z</span>
<span class="halfStyle" data-content="A">A</span>

<hr/>
<p>Automated:</p>

<span class="textToHalfStyle">Half-style, please.</span>

( JSFiddle demo 和 samtremaine.co.uk )


第 4 部分:准备生产

可以在同一页面上的所需元素上使用定制的不同 Half-Style 样式集。
您可以定义多个样式集并告诉插件使用哪一个。

该插件使用数据属性 data-halfstyle="[-CustomClassName-]"在目标上 .textToHalfStyle元素并自动进行所有必要的更改。

因此，只需在包含文本的元素上添加 textToHalfStyle类和数据属性 data-halfstyle="[-CustomClassName-]" .该插件将完成剩下的工作。



CSS 样式集的类定义也与 [-CustomClassName-] 匹配。上面提到的部分，链接到 .halfStyle ，所以我们将有 .halfStyle.[-CustomClassName-]

jQuery(function($) {
    var halfstyle_text, halfstyle_chars, $halfstyle_el, halfstyle_i, halfstyle_output, halfstyle_style;

    // Iterate over all class occurrences
    $('.textToHalfStyle').each(function(idx, halfstyle_el) {
        $halfstyle_el = $(halfstyle_el);
        halfstyle_style = $halfstyle_el.data('halfstyle') || 'hs-base';
        halfstyle_text = $halfstyle_el.text();
        halfstyle_chars = halfstyle_text.split('');

        // Set the screen-reader text
        $halfstyle_el.html('<span style="position: absolute !important;clip: rect(1px 1px 1px 1px);clip: rect(1px, 1px, 1px, 1px);">' + halfstyle_text + '</span>');

        // Reset output for appending
        halfstyle_output = '';

        // Iterate over all chars in the text
        for (halfstyle_i = 0; halfstyle_i < halfstyle_chars.length; halfstyle_i++) {
            // Create a styled element for each character and append to container
            halfstyle_output += '<span aria-hidden="true" class="halfStyle ' + halfstyle_style + '" data-content="' + halfstyle_chars[halfstyle_i] + '">' + halfstyle_chars[halfstyle_i] + '</span>';
        }

        // Write to DOM only once
        $halfstyle_el.append(halfstyle_output);
    });
});

/* start half-style hs-base */

.halfStyle.hs-base {
    position: relative;
    display: inline-block;
    font-size: 80px; /* or any font size will work */
    overflow: hidden;
    white-space: pre; /* to preserve the spaces from collapsing */
    color: #000; /* for demo purposes */
}

.halfStyle.hs-base:before {
    display: block;
    z-index: 1;
    position: absolute;
    top: 0;
    width: 50%;
    content: attr(data-content); /* dynamic content for the pseudo element */
    pointer-events: none; /* so the base char is selectable by mouse */
    overflow: hidden;
    color: #f00; /* for demo purposes */
}

/* end half-style hs-base */


/* start half-style hs-horizontal-third */

.halfStyle.hs-horizontal-third { /* base char and also the bottom 1/3 */
    position: relative;
    display: inline-block;
    font-size: 80px; /* or any font size will work */
    color: transparent;
    overflow: hidden;
    white-space: pre; /* to preserve the spaces from collapsing */
    color: #f0f;
    text-shadow: 2px 2px 0px #0af; /* for demo purposes */
}

.halfStyle.hs-horizontal-third:before { /* creates the top 1/3 */
    display: block;
    z-index: 2;
    position: absolute;
    top: 0;
    height: 33.33%;
    content: attr(data-content); /* dynamic content for the pseudo element */
    overflow: hidden;
    pointer-events: none; /* so the base char is selectable by mouse */
    color: #f00; /* for demo purposes */
    text-shadow: 2px -2px 0px #fa0; /* for demo purposes */
}

.halfStyle.hs-horizontal-third:after { /* creates the middle 1/3 */
    display: block;
    position: absolute;
    z-index: 1;
    top: 0;
    height: 66.66%;
    content: attr(data-content); /* dynamic content for the pseudo element */
    overflow: hidden;
    pointer-events: none; /* so the base char is selectable by mouse */
    color: #000; /* for demo purposes */
    text-shadow: 2px 2px 0px #af0; /* for demo purposes */
}

/* end half-style hs-horizontal-third */


/* start half-style hs-PeelingStyle, by user SamTremaine on Stackoverflow.com */

.halfStyle.hs-PeelingStyle {
  position: relative;
  display: inline-block;
  font-size: 68px;
  color: rgba(0, 0, 0, 0.8);
  overflow: hidden;
  white-space: pre;
  transform: rotate(4deg);
  text-shadow: 2px 1px 3px rgba(0, 0, 0, 0.3);
}

.halfStyle.hs-PeelingStyle:before { /* creates the left part */
  display: block;
  z-index: 1;
  position: absolute;
  top: -0.5px;
  left: -3px;
  width: 100%;
  content: attr(data-content);
  overflow: hidden;
  pointer-events: none;
  color: #FFF;
  transform: rotate(-4deg);
  text-shadow: 0px 0px 1px #000;
}

/* end half-style hs-PeelingStyle */


/* start half-style hs-KevinGranger, by user KevinGranger on StackOverflow.com*/

.textToHalfStyle.hs-KevinGranger {
  display: block;
  margin: 200px 0 0 0;
  text-align: center;
}

.halfStyle.hs-KevinGranger {
  font-family: 'Libre Baskerville', serif;
  position: relative;
  display: inline-block;
  width: 1;
  font-size: 70px;
  color: black;
  overflow: hidden;
  white-space: pre;
  text-shadow: 1px 2px 0 white;
}

.halfStyle.hs-KevinGranger:before {
  display: block;
  z-index: 1;
  position: absolute;
  top: 0;
  width: 50%;
  content: attr(data-content); /* dynamic content for the pseudo element */
  overflow: hidden;
  color: white;
}

/* end half-style hs-KevinGranger

<script src="https://ajax.googleapis.com/ajax/libs/jquery/1.11.1/jquery.min.js"></script>
<p>
    <span class="textToHalfStyle" data-halfstyle="hs-base">Half-style, please.</span>
</p>
<p>
    <span class="textToHalfStyle" data-halfstyle="hs-horizontal-third">Half-style, please.</span>
</p>
<p>
    <span class="textToHalfStyle" data-halfstyle="hs-PeelingStyle">Half-style, please.</span>
</p>
<p style="background-color:#000;">
    <span class="textToHalfStyle" data-halfstyle="hs-KevinGranger">Half-style, please.</span>
</p>

( JSFiddle demo)