如果我在HTML页面中有一个非滚动头,固定在顶部,有一个定义的高度:

是否有一种方法可以使用URL锚(#fragment部分)让浏览器滚动到页面中的某一点,但仍然尊重固定元素的高度,而不需要JavaScript的帮助?

http://example.com/#bar
WRONG (but the common behavior):         CORRECT:
+---------------------------------+      +---------------------------------+
| BAR///////////////////// header |      | //////////////////////// header |
+---------------------------------+      +---------------------------------+
| Here is the rest of the Text    |      | BAR                             |
| ...                             |      |                                 |
| ...                             |      | Here is the rest of the Text    |
| ...                             |      | ...                             |
+---------------------------------+      +---------------------------------+

当前回答

这对我来说很管用:

HTML链接到锚点:

<a href="#security">SECURITY</a>

HTML锚:

<a name="security" class="anchor"></a>

CSS:

.anchor::before {
    content: "";
    display: block;
    margin-top: -50px;
    position: absolute;
}

其他回答

我使用@Jpsy的答案,但出于性能原因,我只在URL中存在散列时设置计时器。

$(function() {
      // Only set the timer if you have a hash
      if(window.location.hash) {
        setTimeout(delayedFragmentTargetOffset, 500);
      }
  });

function delayedFragmentTargetOffset(){
      var offset = $(':target').offset();
      if(offset){
          var scrollto = offset.top - 80; // minus fixed header height
          $('html, body').animate({scrollTop:scrollto}, 0);
          $(':target').highlight();
      }
  };

我发现我必须同时使用muttenxd和Badabam的CSS解决方案,因为第一个在Chrome中不起作用,第二个在Firefox中不起作用:

a.anchor { 
  padding-top: 90px;
}

a.anchor:before { 
  display: block;
  content: "";
  height: 90px;
  margin-top: -90px;
}

<a class="anchor" name="shipping"></a><h2>Shipping (United States)</h2>
...

官方引导采用答案:

*[id]:before { 
  display: block; 
  content: " "; 
  margin-top: -75px; // Set the Appropriate Height
  height: 75px; // Set the Appropriate Height
  visibility: hidden; 
}

学分

对于Chrome/Safari/Firefox,你可以添加一个display: block,并使用负边距来补偿偏移量,如下所示:

a[name] {
    display: block;
    padding-top: 90px;
    margin-top: -90px;
}

参见示例http://codepen.io/swed/pen/RrZBJo

这对我来说很管用:

HTML链接到锚点:

<a href="#security">SECURITY</a>

HTML锚:

<a name="security" class="anchor"></a>

CSS:

.anchor::before {
    content: "";
    display: block;
    margin-top: -50px;
    position: absolute;
}