如何仅在 header 命中特定列时修复列(使用 css 网格)?
How to fix a column (with css grid) only when the header hits a specific column?
从视觉上看,它看起来有点像这样:
headerheaderheader
mainmainmainmain
col1col1col col2
我想在这里实现两件事:
- 向下滚动时
col2
固定在屏幕上。
- 仅在 header 命中列时保持
col2
固定。这是固定的 header.
我试过 但在这种情况下似乎不起作用。那一列就消失了。我的 React 组件是这样构造的:
<Header />
<Middleware />
//below is inside of Middleware
<main>
<form className="booking-form"></form>
<Selection/>
</main>
//below is inside of Selection
<div className="selection"></div>
<BookingDetail/>
//finally, inside of BookingDetail
<div className="booking-detail"></div>
这是我的 html 渲染后的样子:
<header> This is the fixed header </header>
<main class="form-container">
<form class="booking-form"> takes up 100% horizontally </form>
<div class="selection"> takes up about 80% horizontally, below form </div>
<div class="booking-detail"> takes up about 20% horizontally </div>
</main>
最后,css
.form-container {
display: grid;
grid-template-columns: repeat(24, 1fr);
}
.booking-form {
grid-column: 3 / span 20; // takes up entirety of row, see 'main' above
}
.selection { //left column (col1)
grid-column: 3 / span 15;
}
.booking-detail { //right column (col2), which I need fixed when the header hits.
display: block; //display is block as at a smaller break point it's 'display: none;'
grid-column: 19 / -2;
}
编辑:
除了我一直试图修复的一个小错误外,Kenan 的回答非常有效。由于滚动代码,'selection' col 中的内容(一些具有内部内容的 div)意外地调整了大小,我不知道如何修复它。这些是它的内部内容(有很多这样的)
<div className="business-and-timegrid-wrapper" key={index}>
<Estabelecimento
logoURL={item.logoURL}
name={item.name}
rating={item.rating}
address={item.address}
/>
{item && <TimeGridSelection item={item} date={dateForRenderingTimeGrid} />}
</div>
------------------------------------
.business-and-timegrid-wrapper {
padding: 1em;
margin-bottom: -3vh;
background-color: #fff;
display: grid;
grid-template-columns: repeat(2, 50%);
border: 1px #ECECEC solid;
box-shadow: 0px 3px 6px #00000029;
opacity: 1;
}
更新
I don't know how much you know about React, but would writing JS the way you did affect my React app?
好吧,按照我的方式编写 JS 仍然可以在 React 中正常工作,没有任何问题。但是由于您使用的是 React,它将所有内容都放在 div 元素(so-called root
)中,因此在某些情况下它可能不适用于 header 元素。 .
我创建了一个简单的 React 应用程序,并将我最初发布的所有内容都放在那里并相应地对其进行了调整。不幸的是,我对 React 了解不多,但基本上它应该让您了解如何使用 React 实现这一目标。
- 演示:https://react-sticky-Whosebug-63876698.stackblitz.io
- 源代码:https://stackblitz.com/edit/react-sticky-Whosebug-63876698?file=BookingDetail.js
原回答
如果我没理解错的话,单靠 CSS 是无法做到这一点的(希望别人能证明我是错的);所以你需要 JavaScript 的帮助。
顺便说一下,用 'header' 包裹 'main' 是不常见的。 (参见 HTML <main> Tag)。
试试这个(注意我在这个例子中使用了简单的JavaScript,但是你可以根据你选择的框架进行调整):
JSFiddle:https://jsfiddle.net/od9jf4m7/
window.onload = function() {
var pageHeaderElem = document.getElementById("page-header");
var bookingDetailElem = document.getElementsByClassName("booking-detail")[0];
var bookingDetailContentElem = document.getElementById("booking-detail-content");
function checkBookingDetailContent() {
bookingDetailContentElem.style.width = bookingDetailContentElem.parentElement.offsetWidth + 'px';
bookingDetailContentElem.style.height = bookingDetailContentElem.parentElement.offsetHeight + 'px';
if(bookingDetailElem.getBoundingClientRect().top < pageHeaderElem.offsetHeight) {
if(!bookingDetailContentElem.classList.contains("fixed")) {
bookingDetailContentElem.classList.add("fixed");
}
} else {
bookingDetailContentElem.classList.remove("fixed");
}
}
window.addEventListener("scroll", checkBookingDetailContent);
window.addEventListener("resize", checkBookingDetailContent);
checkBookingDetailContent();
}
* {
box-sizing: border-box;
color: #fff;
padding: 0;
margin: 0;
}
html, body {
display: block;
width: 100%;
background: black;
height: 200%;
}
#page-header {
background: blue;
height: 100px;
position: sticky;
top: 0;
z-index: 2;
}
.form-container {
display: flex;
flex-direction: column;
position: sticky;
}
.form-container .booking-form {
background: red;
height: 250px;
}
.form-container .col-wp {
height: 500px;
overflow: hidden;
}
.form-container .col-wp .selection {
background: green;
float: left;
width: 80%;
height: 100%;
}
.form-container .col-wp .booking-detail {
width: 20%;
height: 100%;
float: right;
}
#booking-detail-content {
background: orange;
z-index: 1;
}
#booking-detail-content.fixed {
position: fixed;
top: 100px;
}
<html>
<body>
<header id="page-header">
This is my header
</header>
<main class="form-container">
<form class="booking-form">takes up 100% horizontally</form>
<div class="col-wp">
<div class="selection">takes up about 80% horizontally</div>
<div class="booking-detail">
<div id="booking-detail-content">
takes up about 20% horizontally
</div>
</div>
</div>
</main>
</body>
</html>
The green col (as per your coloration) is undergoing some internal resizing and I can't figure out why. It's the many divs I have inside of it that somehow are being affected by the scroll code. I edited the question to reflect this.
很抱歉没有考虑到虽然您最初使用 CSS 网格布局,但我在解决方案中使用了 flex 布局。所以,这次我专门使用了网格布局。由于我之前的回答被接受了,我不想再碰它了,所以这里是第二个答案。
看看这个:
- Stackblitz 应用:https://react-sticky-Whosebug-63876698-v2.stackblitz.io
- Stackblitz 编辑器(源代码):https://stackblitz.com/edit/react-sticky-Whosebug-63876698-v2?file=App.js
参考文献:
- React: Forwarding Refs
- CSS-Tricks: A Complete Guide to Grid
- 关于我创建的
WinScrollEventWrapper.js
:
- 关于我创建的
BookingDetailPortal.js
:
从视觉上看,它看起来有点像这样:
headerheaderheader
mainmainmainmain
col1col1col col2
我想在这里实现两件事:
- 向下滚动时
col2
固定在屏幕上。 - 仅在 header 命中列时保持
col2
固定。这是固定的 header.
我试过
<Header />
<Middleware />
//below is inside of Middleware
<main>
<form className="booking-form"></form>
<Selection/>
</main>
//below is inside of Selection
<div className="selection"></div>
<BookingDetail/>
//finally, inside of BookingDetail
<div className="booking-detail"></div>
这是我的 html 渲染后的样子:
<header> This is the fixed header </header>
<main class="form-container">
<form class="booking-form"> takes up 100% horizontally </form>
<div class="selection"> takes up about 80% horizontally, below form </div>
<div class="booking-detail"> takes up about 20% horizontally </div>
</main>
最后,css
.form-container {
display: grid;
grid-template-columns: repeat(24, 1fr);
}
.booking-form {
grid-column: 3 / span 20; // takes up entirety of row, see 'main' above
}
.selection { //left column (col1)
grid-column: 3 / span 15;
}
.booking-detail { //right column (col2), which I need fixed when the header hits.
display: block; //display is block as at a smaller break point it's 'display: none;'
grid-column: 19 / -2;
}
编辑: 除了我一直试图修复的一个小错误外,Kenan 的回答非常有效。由于滚动代码,'selection' col 中的内容(一些具有内部内容的 div)意外地调整了大小,我不知道如何修复它。这些是它的内部内容(有很多这样的)
<div className="business-and-timegrid-wrapper" key={index}>
<Estabelecimento
logoURL={item.logoURL}
name={item.name}
rating={item.rating}
address={item.address}
/>
{item && <TimeGridSelection item={item} date={dateForRenderingTimeGrid} />}
</div>
------------------------------------
.business-and-timegrid-wrapper {
padding: 1em;
margin-bottom: -3vh;
background-color: #fff;
display: grid;
grid-template-columns: repeat(2, 50%);
border: 1px #ECECEC solid;
box-shadow: 0px 3px 6px #00000029;
opacity: 1;
}
更新
I don't know how much you know about React, but would writing JS the way you did affect my React app?
好吧,按照我的方式编写 JS 仍然可以在 React 中正常工作,没有任何问题。但是由于您使用的是 React,它将所有内容都放在 div 元素(so-called root
)中,因此在某些情况下它可能不适用于 header 元素。 .
我创建了一个简单的 React 应用程序,并将我最初发布的所有内容都放在那里并相应地对其进行了调整。不幸的是,我对 React 了解不多,但基本上它应该让您了解如何使用 React 实现这一目标。
- 演示:https://react-sticky-Whosebug-63876698.stackblitz.io
- 源代码:https://stackblitz.com/edit/react-sticky-Whosebug-63876698?file=BookingDetail.js
原回答
如果我没理解错的话,单靠 CSS 是无法做到这一点的(希望别人能证明我是错的);所以你需要 JavaScript 的帮助。
顺便说一下,用 'header' 包裹 'main' 是不常见的。 (参见 HTML <main> Tag)。
试试这个(注意我在这个例子中使用了简单的JavaScript,但是你可以根据你选择的框架进行调整):
JSFiddle:https://jsfiddle.net/od9jf4m7/
window.onload = function() {
var pageHeaderElem = document.getElementById("page-header");
var bookingDetailElem = document.getElementsByClassName("booking-detail")[0];
var bookingDetailContentElem = document.getElementById("booking-detail-content");
function checkBookingDetailContent() {
bookingDetailContentElem.style.width = bookingDetailContentElem.parentElement.offsetWidth + 'px';
bookingDetailContentElem.style.height = bookingDetailContentElem.parentElement.offsetHeight + 'px';
if(bookingDetailElem.getBoundingClientRect().top < pageHeaderElem.offsetHeight) {
if(!bookingDetailContentElem.classList.contains("fixed")) {
bookingDetailContentElem.classList.add("fixed");
}
} else {
bookingDetailContentElem.classList.remove("fixed");
}
}
window.addEventListener("scroll", checkBookingDetailContent);
window.addEventListener("resize", checkBookingDetailContent);
checkBookingDetailContent();
}
* {
box-sizing: border-box;
color: #fff;
padding: 0;
margin: 0;
}
html, body {
display: block;
width: 100%;
background: black;
height: 200%;
}
#page-header {
background: blue;
height: 100px;
position: sticky;
top: 0;
z-index: 2;
}
.form-container {
display: flex;
flex-direction: column;
position: sticky;
}
.form-container .booking-form {
background: red;
height: 250px;
}
.form-container .col-wp {
height: 500px;
overflow: hidden;
}
.form-container .col-wp .selection {
background: green;
float: left;
width: 80%;
height: 100%;
}
.form-container .col-wp .booking-detail {
width: 20%;
height: 100%;
float: right;
}
#booking-detail-content {
background: orange;
z-index: 1;
}
#booking-detail-content.fixed {
position: fixed;
top: 100px;
}
<html>
<body>
<header id="page-header">
This is my header
</header>
<main class="form-container">
<form class="booking-form">takes up 100% horizontally</form>
<div class="col-wp">
<div class="selection">takes up about 80% horizontally</div>
<div class="booking-detail">
<div id="booking-detail-content">
takes up about 20% horizontally
</div>
</div>
</div>
</main>
</body>
</html>
The green col (as per your coloration) is undergoing some internal resizing and I can't figure out why. It's the many divs I have inside of it that somehow are being affected by the scroll code. I edited the question to reflect this.
很抱歉没有考虑到虽然您最初使用 CSS 网格布局,但我在解决方案中使用了 flex 布局。所以,这次我专门使用了网格布局。由于我之前的回答被接受了,我不想再碰它了,所以这里是第二个答案。
看看这个:
- Stackblitz 应用:https://react-sticky-Whosebug-63876698-v2.stackblitz.io
- Stackblitz 编辑器(源代码):https://stackblitz.com/edit/react-sticky-Whosebug-63876698-v2?file=App.js
参考文献:
- React: Forwarding Refs
- CSS-Tricks: A Complete Guide to Grid
- 关于我创建的
WinScrollEventWrapper.js
: - 关于我创建的
BookingDetailPortal.js
: