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单个字符的纯CSSJavaScript用于跨文本或多个字符的自动化为盲人或视觉用户保留屏幕阅读器的文本可访问性受损
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。你所需要做的就是在目标文本上添加一个类,剩下的就处理好了。
此外,为盲人或视力受损的屏幕阅读器保留了原文的可访问性。
单个字符的解释:
纯CSS。您所需要做的就是将.halfStyle类应用于包含要设置为半样式的字符的每个元素。
对于包含字符的每个span元素,您可以创建一个数据属性,例如,这里datacontent=“X”,在伪元素上使用content:attr(datacontent);所以.halfStyle:before类将是动态的,您不需要为每个实例硬编码。
任何文本的解释:
只需将textToHalfStyle类添加到包含文本的元素中。
//自动模式的jQueryjQuery(函数($){var文本,字符,$el,i,输出;//遍历所有类出现$('.textToHalfStyle').each(函数(idx,el){$el=$(el);text=$el.text();chars=text.split('');//设置屏幕阅读器文本$el.html('<span style=“position:absolute!important;clip:rect(1px 1px 1fx 1px);clip:direct(1fx,1px,1px)”>'+text+'</span>');//重置附加输出输出=“”;//遍历文本中的所有字符对于(i=0;i<chars.length;i++){//为每个字符创建样式元素并附加到容器output+='<span aria hidden=“true”class=“halfStyle”数据content=“'+chars[i]+'”>'+chars[i]+'</span>';}//仅写入DOM一次$el.append(输出);});});半样式{位置:相对;显示:内联块;字体大小:80px;/*或者任何字体大小都可以*/颜色:黑色;/*或透明,任何颜色*/溢出:隐藏;空白:pre;/*以防止空间塌陷*/}半样式:之前{显示:块;z指数:1;位置:绝对;顶部:0;左:0;宽度:50%;内容:属性(数据内容);/*伪元素的动态内容*/溢出:隐藏;颜色:#f00;}<script src=“https://ajax.googleapis.com/ajax/libs/jquery/1.11.1/jquery.min.js“></script><p>单个字符:</p><span class=“halfStyle”数据content=“X”>X</span><span class=“halfStyle”数据content=“Y”>Y</span><span class=“halfStyle”数据content=“Z”>Z</span><span class=“halfStyle”数据content=“A”>A</span><hr/><p>自动化:</p>请选择半样式</span>
(JSFiddle演示)
第2部分:高级解决方案-独立的左侧和右侧部分
使用此解决方案,您可以单独和独立地设置左侧和右侧零件的样式。
一切都是一样的,只有更高级的CSS才有魔力。
jQuery(函数($){var文本,字符,$el,i,输出;//遍历所有类出现$('.textToHalfStyle').each(函数(idx,el){$el=$(el);text=$el.text();chars=text.split('');//设置屏幕阅读器文本$el.html('<span style=“position:absolute!important;clip:rect(1px 1px 1fx 1px);clip:direct(1fx,1px,1px)”>'+text+'</span>');//重置附加输出输出=“”;//遍历文本中的所有字符对于(i=0;i<chars.length;i++){//为每个字符创建样式元素并附加到容器output+='<span aria hidden=“true”class=“halfStyle”数据content=“'+chars[i]+'”>'+chars[i]+'</span>';}//仅写入DOM一次$el.append(输出);});});半样式{位置:相对;显示:内联块;字体大小:80px;/*或者任何字体大小都可以*/颜色:透明;/*隐藏基础字符*/溢出:隐藏;空白:pre;/*以防止空间塌陷*/}.halfStyle:在{/*创建左侧部分之前*/显示:块;z指数:1;位置:绝对;顶部:0;宽度:50%;内容:属性(数据内容);/*伪元素的动态内容*/溢出:隐藏;指针事件:无;/*所以基本字符可以通过鼠标选择*/颜色:#f00;/*用于演示目的*/文本阴影:2px-2px 0px#af0;/*用于演示目的*/}.halfStyle:在{/*创建正确的部分之后*/显示:块;方向:rtl;/*非常重要,将使宽度从右侧开始*/位置:绝对;z指数:2;顶部:0;左:50%;宽度:50%;内容:属性(数据内容);/*伪元素的动态内容*/溢出:隐藏;指针事件:无;/*所以基本字符可以通过鼠标选择*/颜色:#000;/*用于演示目的*/文本阴影:2px 2px 0px#0af;/*用于演示目的*/}<script src=“https://ajax.googleapis.com/ajax/libs/jquery/1.11.1/jquery.min.js“></script><p>单个字符:</p><span class=“halfStyle”数据content=“X”>X</span><span class=“halfStyle”数据content=“Y”>Y</span><span class=“halfStyle”数据content=“Z”>Z</span><span class=“halfStyle”数据content=“A”>A</span><hr/><p>自动化:</p>请选择半样式</span>
(JSFiddle演示)
Part 3: Mix-Match and Improve
Now that we know what is possible, let's create some variations.
-Horizontal Half Parts
Without Text Shadow:
Possibility of Text Shadow for each half part independently:
// 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
$el.append(output);
});
});
.halfStyle {
position: relative;
display: inline-block;
font-size: 80px; /* or any font size will work */
color: transparent; /* hide the base character */
overflow: hidden;
white-space: pre; /* to preserve the spaces from collapsing */
}
.halfStyle:before { /* creates the top part */
display: block;
z-index: 2;
position: absolute;
top: 0;
height: 50%;
content: attr(data-content); /* dynamic content for the pseudo element */
overflow: hidden;
pointer-events: none; /* so the base char is selectable by mouse */
color: #f00; /* for demo purposes */
text-shadow: 2px -2px 0px #af0; /* for demo purposes */
}
.halfStyle:after { /* creates the bottom part */
display: block;
position: absolute;
z-index: 1;
top: 0;
height: 100%;
content: attr(data-content); /* dynamic content for the pseudo element */
overflow: hidden;
pointer-events: none; /* so the base char is selectable by mouse */
color: #000; /* for demo purposes */
text-shadow: 2px 2px 0px #0af; /* for demo purposes */
}
<script src="https://ajax.googleapis.com/ajax/libs/jquery/1.11.1/jquery.min.js"></script>
<p>Single Characters:</p>
<span class="halfStyle" data-content="X">X</span>
<span class="halfStyle" data-content="Y">Y</span>
<span class="halfStyle" data-content="Z">Z</span>
<span class="halfStyle" data-content="A">A</span>
<hr/>
<p>Automated:</p>
<span class="textToHalfStyle">Half-style, please.</span>
(JSFiddle demo)
-Vertical 1/3 Parts
Without Text Shadow:
Possibility of Text Shadow for each 1/3 part independently:
// jQuery for automated mode
jQuery(function($) {
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
$el.append(output);
});
});
.halfStyle { /* base char and also the right 1/3 */
position: relative;
display: inline-block;
font-size: 80px; /* or any font size will work */
color: transparent; /* hide the base character */
overflow: hidden;
white-space: pre; /* to preserve the spaces from collapsing */
color: #f0f; /* for demo purposes */
text-shadow: 2px 2px 0px #0af; /* for demo purposes */
}
.halfStyle:before { /* creates the left 1/3 */
display: block;
z-index: 2;
position: absolute;
top: 0;
width: 33.33%;
content: attr(data-content); /* dynamic content for the pseudo element */
overflow: hidden;
pointer-events: none; /* so the base char is selectable by mouse */
color: #f00; /* for demo purposes */
text-shadow: 2px -2px 0px #af0; /* for demo purposes */
}
.halfStyle:after { /* creates the middle 1/3 */
display: block;
z-index: 1;
position: absolute;
top: 0;
width: 66.66%;
content: attr(data-content); /* dynamic content for the pseudo element */
overflow: hidden;
pointer-events: none; /* so the base char is selectable by mouse */
color: #000; /* for demo purposes */
text-shadow: 2px 2px 0px #af0; /* for demo purposes */
}
<script src="https://ajax.googleapis.com/ajax/libs/jquery/1.11.1/jquery.min.js"></script>
<p>Single Characters:</p>
<span class="halfStyle" data-content="X">X</span>
<span class="halfStyle" data-content="Y">Y</span>
<span class="halfStyle" data-content="Z">Z</span>
<span class="halfStyle" data-content="A">A</span>
<hr/>
<p>Automated:</p>
<span class="textToHalfStyle">Half-style, please.</span>
(JSFiddle demo)
-Horizontal 1/3 Parts
Without Text Shadow:
Possibility of Text Shadow for each 1/3 part independently:
// jQuery for automated mode
jQuery(function($) {
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
$el.append(output);
});
});
.halfStyle { /* base char and also the bottom 1/3 */
position: relative;
display: inline-block;
font-size: 80px; /* or any font size will work */
color: transparent;
overflow: hidden;
white-space: pre; /* to preserve the spaces from collapsing */
color: #f0f;
text-shadow: 2px 2px 0px #0af; /* for demo purposes */
}
.halfStyle:before { /* creates the top 1/3 */
display: block;
z-index: 2;
position: absolute;
top: 0;
height: 33.33%;
content: attr(data-content); /* dynamic content for the pseudo element */
overflow: hidden;
pointer-events: none; /* so the base char is selectable by mouse */
color: #f00; /* for demo purposes */
text-shadow: 2px -2px 0px #fa0; /* for demo purposes */
}
.halfStyle:after { /* creates the middle 1/3 */
display: block;
position: absolute;
z-index: 1;
top: 0;
height: 66.66%;
content: attr(data-content); /* dynamic content for the pseudo element */
overflow: hidden;
pointer-events: none; /* so the base char is selectable by mouse */
color: #000; /* for demo purposes */
text-shadow: 2px 2px 0px #af0; /* for demo purposes */
}
<script src="https://ajax.googleapis.com/ajax/libs/jquery/1.11.1/jquery.min.js"></script>
<p>Single Characters:</p>
<span class="halfStyle" data-content="X">X</span>
<span class="halfStyle" data-content="Y">Y</span>
<span class="halfStyle" data-content="Z">Z</span>
<span class="halfStyle" data-content="A">A</span>
<hr/>
<p>Automated:</p>
<span class="textToHalfStyle">Half-style, please.</span>
(JSFiddle demo)
-HalfStyle Improvement By @KevinGranger
// jQuery for automated mode
jQuery(function($) {
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
$el.append(output);
});
});
body {
background-color: black;
}
.textToHalfStyle {
display: block;
margin: 200px 0 0 0;
text-align: center;
}
.halfStyle {
font-family: 'Libre Baskerville', serif;
position: relative;
display: inline-block;
width: 1;
font-size: 70px;
color: black;
overflow: hidden;
white-space: pre;
text-shadow: 1px 2px 0 white;
}
.halfStyle:before {
display: block;
z-index: 1;
position: absolute;
top: 0;
width: 50%;
content: attr(data-content); /* dynamic content for the pseudo element */
overflow: hidden;
color: white;
}
<script src="https://ajax.googleapis.com/ajax/libs/jquery/1.11.1/jquery.min.js"></script>
<p>Single Characters:</p>
<span class="halfStyle" data-content="X">X</span>
<span class="halfStyle" data-content="Y">Y</span>
<span class="halfStyle" data-content="Z">Z</span>
<span class="halfStyle" data-content="A">A</span>
<hr/>
<p>Automated:</p>
<span class="textToHalfStyle">Half-style, please.</span>
(JSFiddle demo)
-PeelingStyle improvement of HalfStyle by @SamTremaine
// jQuery for automated mode
jQuery(function($) {
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
$el.append(output);
});
});
.halfStyle {
position: relative;
display: inline-block;
font-size: 68px;
color: rgba(0, 0, 0, 0.8);
overflow: hidden;
white-space: pre;
transform: rotate(4deg);
text-shadow: 2px 1px 3px rgba(0, 0, 0, 0.3);
}
.halfStyle:before { /* creates the left part */
display: block;
z-index: 1;
position: absolute;
top: -0.5px;
left: -3px;
width: 100%;
content: attr(data-content);
overflow: hidden;
pointer-events: none;
color: #FFF;
transform: rotate(-4deg);
text-shadow: 0px 0px 1px #000;
}
<script src="https://ajax.googleapis.com/ajax/libs/jquery/1.11.1/jquery.min.js"></script>
<p>Single Characters:</p>
<span class="halfStyle" data-content="X">X</span>
<span class="halfStyle" data-content="Y">Y</span>
<span class="halfStyle" data-content="Z">Z</span>
<span class="halfStyle" data-content="A">A</span>
<hr/>
<p>Automated:</p>
<span class="textToHalfStyle">Half-style, please.</span>
(JSFiddle demo and on samtremaine.co.uk)
Part 4: Ready for Production
Customized different Half-Style style-sets can be used on desired elements on the same page.
You can define multiple style-sets and tell the plugin which one to use.
The plugin uses data attribute data-halfstyle="[-CustomClassName-]"
on the target .textToHalfStyle
elements and makes all the necessary changes automatically.
So, simply on the element containing the text add textToHalfStyle
class and data attribute data-halfstyle="[-CustomClassName-]"
. The plugin will do the rest of the job.
Also the CSS style-sets' class definitions match the [-CustomClassName-]
part mentioned above and is chained to .halfStyle
, so we will have .halfStyle.[-CustomClassName-]
jQuery(function($) {
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)