你可以使用空格:pre;使元素像<pre>一样，保留换行符。例子:

p { 空白:前; ｝ < p >你好 </p>

注意，对于IE，这只适用于IE8+。

你可以使用空格:pre;使元素像<pre>一样，保留换行符。例子:

p { 空白:前; ｝ < p >你好 </p>

注意，对于IE，这只适用于IE8+。

使用overflow-wrap: break-word;如:

.yourelement{
  overflow-wrap: break-word;
}

一个现代而简单的解决方案是这样设置宽度:

宽度:min-content;

这个CSS规则主要适用于文本内容，但不仅限于: https://developer.mozilla.org/en-US/docs/Web/CSS/min-content

p { 保证金:20 px; 颜色:# 222; font-family:'世纪哥特式'，sans-serif; 边框:2px虚线灰色; 填充:3 px; ｝ .max { 宽度:max-content; ｝ .min { 宽度:min-content; ｝ <！DOCTYPE html > < html lang =“en”> <头/ > <身体> <p class="max">最大宽度</p> <p class="min">最小可用宽度</p> < /身体> < / html >

设置一个br标记来显示:none是有帮助的，但是你可以用WordsRunTogether结束。我发现用空格字符代替它更有帮助，就像这样:

HTML:

<h1>
    Breaking<br />News:<br />BR<br />Considered<br />Harmful!
</h1>

CSS:

@media (min-device-width: 1281px){
    h1 br {content: ' ';}
    h1 br:after {content: ' ';}
}

要使元素在后面有换行符，为它赋值:

显示:块;

块级元素之后的非浮动元素将在下一行出现。许多元素，如<p>和<div>已经是块级元素，所以您可以只使用它们。

But while this is good to know, this really depends more on the context of your content. In your example, you would not want to use CSS to force a line break. The <br /> is appropriate because semantically the p tag is the the most appropriate for the text you are displaying. More markup just to hang CSS off it is unnecessary. Technically it's not exactly a paragraph, but there is no <greeting> tag, so use what you have. Describing your content well with HTMl is way more important - after you have that then figure out how to make it look pretty.