(function(){
    var head = document.getElementsByTagName("head")[0];
    var meta = document.createElement('meta');
    meta.name = "viewport";
    meta.content = "width=device-width,minimum-scale=1.0,maximum-scale=1.0,user-scalable=no";
    head.appendChild(meta);
 
    var children = document.body.children;
    var titleFounded = false;
    for(var i = 0; i < children.length; i++){
        var child = children[i]
        var tagName = child.tagName.toLowerCase()
        // 隐藏标题前的空段落
        if(!child.textContent){
            child.style.display = "none";
        }else if(titleFounded){
            // 如果找到标题了，那么遇到第一个不为空的短路，就不再处理了
            break
        }
        // 隐藏标题
        if(tagName === 'h1' || tagName === 'h2' || tagName === 'h3'){
            child.style.display = "none"
            titleFounded = true
        }
    }
})()