为什么没法设置span的宽度和高度_html/css_WEB-ITnose
为什么没法设置span的宽度和高度:
建议:尽可能的手写代码，可以有效的提高学习效率和深度。
很多刚开始学习div+css布局的时候可能会碰到这样的问题，使用CSS代码无法设置span的高度和宽度，尽管CSS代码没有错误，却无法生效。例如
<!DOCTYPE html><html><head><meta charset=" utf-8"><meta name="author" content="http://www.softwhy.com/" /><title>蚂蚁部落</title><style type="text/css">.mytest{ width:200px; height:200px; border:1px solid red;}</style></head><body><span class="mytest">蚂蚁部落</span></body></html>在以上代码中，设置的span元素的高度和宽度无法生效。这种现象的原因是，内联元素无法设置宽度和高度，如果要想设置宽度和高度，则必须首先转换成块级元素，方法是将内联元素的display属性值设置为block即可。 CSS代码修改如下:
width:200px;height:200px;display:block;border:1px solid red;
原文地址是:http://www.softwhy.com/forum.php?mod=viewthread&tid=4708
更多内容可以参阅:http://www.softwhy.com/divcss/
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