摘要:
<style> div{ width: 300px; height: 200px; border: 2px dotted red; } </style></head><body><input type="button" value="显示效果" id="btn"/><input type="butt 阅读全文
摘要:
<style> div { width: 200px; height: 150px; border: 2px solid red; } </style></head><body> <input type="button" value="设置值" id="btn"/><div id="dv">哦,太神 阅读全文