防止 CSS 网格中的双边框

小开

.wrapper {
display: grid;
grid-template-columns: 50px 50px 50px 50px;
}


.wrapper > div {
padding: 15px;
text-align: center;
border: 1px solid black;
margin:0 -1px -1px 0;
}

<div class="wrapper">
<div>1</div>
<div>2</div>
<div>3</div>
<div>4</div>
<div>5</div>
<div>6</div>
<div>7</div>
<div>8</div>
</div>

margin:0 -1px -1px 0;

这个应该能行。

小开

最佳答案

你可以这样做:

.wrapper {
display: inline-grid;
grid-template-columns: 50px 50px 50px 50px;
border-bottom: 1px solid black;
border-left: 1px solid black;
}


.wrapper > div {
padding: 15px;
text-align: center;
border-top: 1px solid black;
border-right: 1px solid black;
}


body {
background:pink;
}

<div class="wrapper">
<div>1</div>
<div>2</div>
<div>3</div>
<div>4</div>
<div>5</div>
<div>6</div>
<div>7</div>
<div>8</div>
</div>

另一个想法是依靠梯度来填补以下空白:

.wrapper {
display: inline-grid;
grid-template-columns: 50px 50px 50px 50px;
grid-gap:1px;
background:
linear-gradient(#000,#000) center/100% 1px no-repeat,
repeating-linear-gradient(to right,transparent 0 50px,#000 0 51px);
border:1px solid;
}


.wrapper > div {
padding: 15px;
text-align: center;
}


body {
background:pink;
}

<div class="wrapper">
<div>1</div>
<div>2</div>
<div>3</div>
<div>4</div>
<div>5</div>
<div>6</div>
<div>7</div>
<div>8</div>
</div>

您还可以调整初始解决方案，使其更加灵活，并且可以在一行中处理任意数量的项。

在整个页面上运行以下代码并调整窗口大小:

.wrapper {
display: grid;
max-width:800px;
grid-template-columns: repeat(auto-fill,minmax(100px,1fr));
border-top: 1px solid black;
border-left: 1px solid black;
}


.wrapper > div {
padding: 15px;
text-align: center;
border-bottom: 1px solid black;
border-right: 1px solid black;
}


body {
background:pink;
}

<div class="wrapper">
<div>1</div>
<div>2</div>
<div>3</div>
<div>4</div>
<div>5</div>
<div>6</div>
<div>7</div>
<div>8</div>
<div>9</div>
<div>10</div>
<div>11</div>
</div>

小开

不要在网格项周围使用实际的边框，而是使用容器上的背景颜色(用于“边框”颜色)和 grid-gap属性(用于“边框”宽度)。

.wrapper {
display: inline-grid;
grid-template-columns: 50px 50px 50px 50px;
border: 1px solid black;
grid-gap: 1px;
background-color: black;
}


.wrapper > div {
background-color: white;
padding: 15px;
text-align: center;
}

<div class="wrapper">
<div>1</div>
<div>2</div>
<div>3</div>
<div>4</div>
<div>5</div>
<div>6</div>
<div>7</div>
<div>8</div>
</div>

小开

我通过使用 outline属性找到了一个解决方案。

.grid {
width: 100%;
height: 700px;
display: grid;
grid-template-columns: repeat(4, 25fr);
grid-template-rows: repeat(4, 25fr);
margin-bottom: 30px;
grid-gap: 1px;
}


.grid-item {
background-color: silver;
outline: 1px solid gray; /* The outline creates the border */
text-align: center;
position: relative;
z-index: 1; /* original z-index */
}


/* If you want to change the color on the hover state */
.grid-item:hover {
outline: 1px solid red;
z-index: 2; /* You must apply a z-index bigger than the original z-index or else some parts of the outline will be behind other grid elements */
}

<div class="grid">
<div class="grid-item"></div>
<div class="grid-item"></div>
<div class="grid-item"></div>
<div class="grid-item"></div>
<div class="grid-item"></div>
<div class="grid-item"></div>
<div class="grid-item"></div>
<div class="grid-item"></div>
<div class="grid-item"></div>
<div class="grid-item"></div>
</div>

小开

我曾经成功地在网格项上添加了一个方框阴影，以及一个列和行间隔。然后，这就允许列的大小始终与在 grid-template-columns中确定的大小完全一致。然后简单地改变列和行间隙以及框阴影大小，就可以得到更厚的边框。

.wrapper {
display: grid;
grid-template-columns: 50px 50px 50px 50px;
grid-column-gap: 1px;
grid-row-gap: 1px;
}
.wrapper > div {
padding: 15px;
text-align: center;
box-shadow: 0 0 0 1px;
}

<div class="wrapper">
<div>1</div>
<div>2</div>
<div>3</div>
<div>4</div>
<div>5</div>
<div>6</div>
<div>7</div>
<div>8</div>
</div>

小开

双赢的准则是

网格项目: 边界-底部和边界-右边
网格包装: bordertop & borderleft

因此，即使顶部的列不等于底部的列，它也会进行修正

.wrapper {
display: inline-grid;
grid-template-columns: 50px 50px 50px 50px;
border-top: 1px solid black;
border-left: 1px solid black;
}


.wrapper > div {
padding: 15px;
text-align: center;
border-bottom: 1px solid black;
border-right: 1px solid black;
}


<div class="wrapper">
<div>1</div>
<div>2</div>
<div>3</div>
<div>4</div>
<div>5</div>
<div>6</div>
<div>7</div>
</div>

小开

有一个简单的方法可以做到这一点:

.grid {
display: grid;
grid-template-columns: repeat(4, 1fr);
grid-gap: 1px;
}


.grid__item {
border: 1px solid gray;
box-sizing: content-box;
width: 100%;
height: 100%;
}

<div class="grid">
<div class="grid__item">1</div>
<div class="grid__item">2</div>
<div class="grid__item">3</div>
<div class="grid__item">4</div>
<div class="grid__item">5</div>
<div class="grid__item">6</div>
<div class="grid__item">7</div>
<div class="grid__item">8</div>
<div class="grid__item">9</div>
<div class="grid__item">10</div>
<div class="grid__item">11</div>
<div class="grid__item">12</div>
</div>

附言。这里的主要技巧是在 box-sizing: content-box。如果不在全局用另一个值覆盖它，则不需要它。但是许多人使用 border-box，在这种情况下，这种覆盖解决了与差距的问题。

小开

如果您要确定每行的项目数，这个解决方案将适合您,

这个例子为3每行，但你可以编辑

.grid-container {
display: grid;
grid-template-columns: 1fr 1fr 1fr;
grid-template-rows: 1fr;
gap: 0;
grid-template-areas: '. . .';
}


.grid-item {
order: 0;
flex: 0 1 auto;
text-align: center;
padding: 1rem;
font-size: 12px;
background-color: #e8e8e8;
border-color: #000;
border-style: solid;
border-width: 0;


border-right-width: 1px;
border-bottom-width: 1px;
}


/*first 3 items*/
.grid-item:nth-child(-n + 3) {
border-top-width: 1px;
}


/*last item on each row*/
.grid-item:nth-child(3n + 0) {
border-right-width: 1px;
background-color: cadetblue;
}
  

/*first item on each row*/


.grid-item:first-child,
.grid-item:nth-child(3n + 1) {
border-left-width: 1px;
background-color: red;
}
  

/*middel item on each row (not used)*/
.grid-item:nth-child(3n - 1) {
// border-left-width: 1px;
background-color: yellow;
}


/*last item (not used)*/
.grid-item:last-child {
// border-left-width: 0;
background-color: green
}

<div class="grid-container">


<div class="grid-item"> 1 </div>


<div class="grid-item"> 2 </div>


<div class="grid-item"> 3 </div>


<div class="grid-item"> 1 </div>


<div class="grid-item"> 2 </div>


<div class="grid-item"> 3 </div>


<div class="grid-item"> 1 </div>


<div class="grid-item"> 2 </div>




</div>

小开

对于任何人谁将与奇数的元素和具体数量的框架斗争，您可以使用以下方法

<style>
.wrapper {
width: 100%;
display: grid;
grid-template-columns: repeat(auto-fill, minmax(18rem, 1fr));
border: 1px solid;
grid-gap: 1px;
}


.element {
display: flex;
flex-direction: column;
background-color: azure;
min-height: 10rem;
border: 1px solid;
margin: -1px;
}
</style>


<body>
<div class="wrapper">
<div class="element"></div>
<div class="element"></div>
<div class="element"></div>
<div class="element"></div>
<div class="element"></div>
<div class="element"></div>
</div>
</body>

Https://codepen.io/sergeytkhojevskiy/pen/xwzojol