jQuery(document).ready(function(){
    $(".welcome").fadeOut(9500);
    $(".freelance").fadeIn(10000);
    $(".freelance").fadeOut(4500);
});

我希望欢迎消息慢慢淡出然后另一个div淡出它的位置然后fadeOut – 显然当欢迎盒不再存在时.

<header>
    <h1 class="left"><a href="index.html"></a></h1>
    <div class="left yellowBox welcome"><p>Welcome to my portfolio.</p></div>
    <div class="left greenBox freelance"><p>I am currently available for for work,contact me below.</p></div>
</header>