<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd"><html xmlns="http://www.w3.org/1999/xhtml"><head> <title></title></head><body><form class="pass_reg_form" id="pass_reg_form" action="" method="post"><p class="pass_reg_p_email" id="pass_reg_p_email"><label class="pass_reg_label_email" id="pass_reg_label_email">My e-mail address: </label><input class="pass_reg_input_email" id="pass_reg_email" type="text" name="email" autocomplete="off" tabindex="1"/><span class="pass_reg_err_email" id="pass_reg_email_err" style="display:block">Please enter an email address</span></p></form></body></html>
设置span的display 比如display:inline
把label里的style="display:block"去掉就行了
display = block
block此元素将显示为块级元素，此元素前后会带有换行符。
写成style="display:"就可以了
