让div支持placeholder属性/模拟输入框的placeholder属性
实现方式:css
div:empty:before{
content: attr(placeholder);
color:#bbb;
}
div:focus:before{
content:none;
}
实现方式:css
div:empty:before{
content: attr(placeholder);
color:#bbb;
}
div:focus:before{
content:none;
}