我已经成功设计了页面锚点,首次点击会补偿固定的页眉高度,代码如下:
<p id="anchorid" style="padding-top: 287px; margin-top: -287px; width: 20px;">
FILLER TEXT
</p>
我遇到的问题是当你滚动时我的标题会缩小,所以一旦你通过一个锚点击一个页面,下次你在该页面上点击一个锚页面时,填充 - 补偿(因为它设置为初始标题高度)并且该部分被带到页面的中间而不是顶部。我希望做的是将锚点填充动态设置为标题的高度,以便它始终将该部分置于顶部,但我遗憾地失去了如何执行此操作。
有没有办法使用锚点(id =&#34;填充物&#34;)让浏览器滚动到某个点,具体取决于标题的高度,使用CSS?
此处解决了类似的问题,但其标题并未改变大小:HTML position:fixed page header and in-page anchors
答案 0 :(得分:2)
编辑回答:
以下是我用于修复标题的代码,该标题在使用jQuery滚动到使用smouth滚动进行锚定时处理偏移。
以下是插图:https://jsfiddle.net/mmb5k7xb/1/
要查看脚本如何以不同的高度做出反应,只需更改html部分中菜单高度的值即可。
希望它有所帮助。
<script type="text/javascript">
var $ = jQuery.noConflict();
$(document).ready(function($) {
var menu_height = $('.menu').height(); // calulate the height of the menu
(function(document, history, location) {
var HISTORY_SUPPORT = !!(history && history.pushState);
var anchorScrolls = {
ANCHOR_REGEX: /^#[^ ]+$/,
OFFSET_HEIGHT_PX: menu_height, // Set the offset with the dynamic value
/**
* Establish events, and fix initial scroll position if a hash is provided.
*/
init: function() {
this.scrollIfAnchor(location.hash);
$('body').on('click', 'a', $.proxy(this, 'delegateAnchors'));
},
/**
* Return the offset amount to deduct from the normal scroll position.
* Modify as appropriate to allow for dynamic calculations
*/
getFixedOffset: function() {
return this.OFFSET_HEIGHT_PX;
},
/**
* If the provided href is an anchor which resolves to an element on the
* page, scroll to it.
* @param {String} href
* @return {Boolean} - Was the href an anchor.
*/
scrollIfAnchor: function(href, pushToHistory) {
var match, anchorOffset;
if(!this.ANCHOR_REGEX.test(href)) {
return false;
}
match = document.getElementById(href.slice(1));
if(match) {
anchorOffset = $(match).offset().top - this.getFixedOffset();
$('html, body').animate({ scrollTop: anchorOffset});
// Add the state to history as-per normal anchor links
if(HISTORY_SUPPORT && pushToHistory) {
history.pushState({}, document.title, location.pathname + href);
}
}
return !!match;
},
/**
* If the click event's target was an anchor, fix the scroll position.
*/
delegateAnchors: function(e) {
var elem = e.target;
if(this.scrollIfAnchor(elem.getAttribute('href'), true)) {
e.preventDefault();
}
}
};
$(document).ready($.proxy(anchorScrolls, 'init'));
})(window.document, window.history, window.location);
});
</script>