Interpretation of CSS whitespace handling properties: whitespace and word-break

Interpretation of CSS whitespace processing properties: whitespace and word-break

When developing web pages, we often encounter situations where text content needs to be blanked. CSS provides some properties to control whitespace symbols and word wrapping in text, making web content more beautiful and readable. This article will explain in detail the two whitespace processing properties in CSS: whitespace and word-break, and provide specific code examples.

1. whitespace attribute

The whitespace attribute is used to define the processing method of whitespace symbols in text. Commonly used attribute values ​​​​are as follows:

1. normal: normal Handle whitespace characters. Consecutive whitespace characters are combined into a single space, and newlines are ignored.
2. nowrap: Ignore newlines, all whitespace characters will be merged into one space, and the text will not wrap automatically.
3. pre: Keep the original format of whitespace characters and do not merge or ignore them. The text retains the original positions of whitespace characters such as spaces and newlines.

The following is a sample code to better understand the role of the whitespace attribute:

<style>
pre {
  whitespace: normal;
}
</style>

<pre class="brush:php;toolbar:false">
  This    is    a    text
      with            spaces.

In the above example, we use the pre tag to wrap a paragraph with multiple consecutive spaces. text. After setting the whitespace property to normal, consecutive whitespace characters are merged into one space, thus enabling normal processing of text.

2. Word-break attribute

The word-break attribute is used to specify the way text is divided when breaking lines. Commonly used attribute values ​​​​are as follows:

1. normal: Split words normally. When a whole word cannot fit on one line, the word is separated onto the next line without splitting the word on new lines.
2. break-all: Allow words to break and wrap between any characters. When the entire word does not fit on a line, the word is broken between any characters as necessary.
3. keep-all: Force no line breaks, only allow line breaks at half-width spaces or hyphens. Consecutive non-whitespace characters will be treated as a whole, and words will not be split when wrapping.

The following is a sample code to better understand the role of the word-break attribute:

<style>
div {
  width: 200px;
  word-break: break-all;
}
</style>

<div>
  ThisIsAReallyLongWordThatCannotFitInTheContainer.
</div>

In the above example, we use the div element to wrap a text that exceeds the width of the container. Long words. After setting the word-break attribute to break-all, words will be broken between any characters as needed, thus realizing automatic line wrapping of long words.

Summary:

The whitespace and word-break properties in CSS provide control over text whitespace and word wrapping. By using these attributes properly, we can better process text content and make the web page presentation more beautiful and readable. Hopefully the specific code examples provided in this article will help readers better understand and apply these two properties.

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