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純css棋盤與div & amp沒有班級和id，可能嗎？

CSS
錢諍諍2年前7瀏覽0評論

我有以下布局

<div id="chess">
    <div></div><div></div><div></div><div></div><div></div><div></div><div></div><div></div>
    <div></div><div></div><div></div><div></div><div></div><div></div><div></div><div></div>
    <div></div><div></div><div></div><div></div><div></div><div></div><div></div><div></div>
    <div></div><div></div><div></div><div></div><div></div><div></div><div></div><div></div>
    <div></div><div></div><div></div><div></div><div></div><div></div><div></div><div></div>
    <div></div><div></div><div></div><div></div><div></div><div></div><div></div><div></div>
    <div></div><div></div><div></div><div></div><div></div><div></div><div></div><div></div>
    <div></div><div></div><div></div><div></div><div></div><div></div><div></div><div></div>
</div>

有沒有可能只用css，不改變上面的html，就做出一個棋盤？這意味著沒有類或id。 兩天來我一直在尋找這樣的想法。我嘗試了第n個孩子()和一些變化，但沒有成功。

我非常好奇這是否可行。這是給某人的任務。

所以拜托，有什么主意嗎？

這是一個有趣的問題。我認為國際象棋棋盤最好表示為一個表格，而不是一系列的方格，因為屏幕閱讀器會指示數字所在的行和列。帶表:

table tr:nth-child(odd) td:nth-child(even) {
  background: #000;
}
table tr:nth-child(even) td:nth-child(odd) {
  background: #000;
}

http://jsfiddle.net/9kWJZ/

不必硬編碼每個:n-child()。這里有一個縮短它的方法。每個選擇器對應棋盤上的一行:

#chess div:nth-child(-2n+8), 
#chess div:nth-child(8) ~ div:nth-child(-2n+15), 
#chess div:nth-child(16) ~ div:nth-child(-2n+24),
#chess div:nth-child(24) ~ div:nth-child(-2n+31),
#chess div:nth-child(32) ~ div:nth-child(-2n+40),
#chess div:nth-child(40) ~ div:nth-child(-2n+47),
#chess div:nth-child(48) ~ div:nth-child(-2n+56),
#chess div:nth-child(56) ~ div:nth-child(-2n+63) {
    background-color: #000;
}

jsFiddle預覽

下面的方法利用了著色圖案每16個方塊重復一次的事實(從左上到右下計數)。因此，第一個規則# chess div:n-child(16n+1)將方格1、17、33和49(換句話說，“第一列”)著色。對從3到16的所有彩色方塊重復這一過程，每個方塊代表一個單獨的列。

對于給定的標記，使用n-of-type還是n-child并不重要，但是對于額外的標記，可能會這樣，所以n-child是更明顯的選擇。

for(i=0;i<64;i++){chess.appendChild(document.createElement("div"))}

#chess div{
     width:22px;height:22px;border:1px solid black;
     float:left; 
}

#chess div:nth-of-type(16n+16),
#chess div:nth-of-type(16n+14),
#chess div:nth-of-type(16n+12),
#chess div:nth-of-type(16n+10),
#chess div:nth-of-type(16n+7),
#chess div:nth-of-type(16n+5),
#chess div:nth-of-type(16n+3),
#chess div:nth-of-type(16n+1){   
    background-color:black;
}

#chess div:nth-of-type(8n+1){   
    clear:left;
}

<div id="chess"></div>

在純CSS中，公認的答案看起來是正確的——然而，如果你想用SCSS來簡化它，你可以做一些數學計算:

#chess {
  div {
    background: #fff;
    /* even children on odd rows, odd children on even rows */
    @each $offset in 2 4 6 8 9 11 13 15 {
      &:nth-child(16n + #{$offset}) {
        background: #000;
      }
    }
  }
}

當然這是可以做到的...

body {
    background-image:
    -moz-linear-gradient(45deg, #000 25%, transparent 25%,transparent 75%, #000 75%, #000 100%),
    -moz-linear-gradient(45deg, #000 25%, transparent 25%,transparent 75%, #000 75%, #000 100%);
    background-image:
    -webkit-linear-gradient(45deg, #000 25%, transparent 25%,transparent 75%, #000 75%, #000 100%),
    -webkit-linear-gradient(45deg, #000 25%, transparent 25%,transparent 75%, #000 75%, #000 100%);
    -moz-background-size:100px 100px;
    background-size:100px 100px;
    -webkit-background-size:101px 101px;
    background-position:0 0, 50px 50px;
}

你不能用n-child(奇數)或n-child(偶數)來給方塊上色，因為不是所有的“奇數”或“偶數”方塊顏色都一樣。從左上角開始計算位置“1”，第一行的白色方塊將是1，3，5，7。繼續到第二行，白色方塊將是10，12，14，16。第三行將返回奇數，17、19、21和23。

因此，您可以手動為每個方塊著色，如下所示:

#chess {
    /* 8 squares at 30x30px per square */
    width: 240px;
    height:240px;
    background:#000;
}

#chess div {
    width:30px;
    height:30px;
    float:left;
}

#chess div:nth-child(1), /* first row */
#chess div:nth-child(3),
#chess div:nth-child(5),
#chess div:nth-child(7),
#chess div:nth-child(10), /* second row */
#chess div:nth-child(12),
#chess div:nth-child(14),
#chess div:nth-child(16)
/* ... up to 64 ... */
{
    background:#fff;
}

我意識到我來晚了，這個問題已經有幾個好答案了。

我只是想添加一個解決方案，我發現在處理高級:第n個子選擇器時很容易管理。它有些冗長，不如其他建議優雅，但我發現它很容易閱讀和處理。

通過鏈接第n個子偽類，您可以將選擇限制在特定范圍內。在偽代碼中，它可以表示為:

:nth-child( start of range ):nth-child( children to select ):nth-child( end of range )

這可以用來給棋盤逐行著色，如下所示:

/* Start at 1st square, color odd squares until the 8th */
#chess :nth-child(n+1):nth-child(odd):nth-child(-n+8),

/* Even squares from 9th to 16th */
#chess :nth-child(n+9):nth-child(even):nth-child(-n+16),

/* Odd squares from 17th to 24th */
#chess :nth-child(n+17):nth-child(odd):nth-child(-n+24),

/* Even squares from 25th to 32nd */
#chess :nth-child(n+25):nth-child(even):nth-child(-n+32),

/* Odd squares from 33rd to 40th */
#chess :nth-child(n+33):nth-child(odd):nth-child(-n+40),

/* Even squares from 41st to 48th */
#chess :nth-child(n+41):nth-child(even):nth-child(-n+48),

/* Odd squares from 49th to 56th */
#chess :nth-child(n+49):nth-child(odd):nth-child(-n+56),

/* Even squares from 57th to 64th */
#chess :nth-child(n+57):nth-child(even):nth-child(-n+64) {
    background: #000;
}

#chess {
    width: 320px;
    height: 320px;
    border: 1px solid #000;
}

#chess div {
    float: left;
    width: 40px;
    height: 40px;
    background: #fff;
}

#chess :nth-child(n+1):nth-child(odd):nth-child(-n+8),
#chess :nth-child(n+9):nth-child(even):nth-child(-n+16),
#chess :nth-child(n+17):nth-child(odd):nth-child(-n+24),
#chess :nth-child(n+25):nth-child(even):nth-child(-n+32),
#chess :nth-child(n+33):nth-child(odd):nth-child(-n+40),
#chess :nth-child(n+41):nth-child(even):nth-child(-n+48),
#chess :nth-child(n+49):nth-child(odd):nth-child(-n+56),
#chess :nth-child(n+57):nth-child(even):nth-child(-n+64) {
  background: #000;
}

<div id="chess">
    <div></div><div></div><div></div><div></div><div></div><div></div><div></div><div></div>
    <div></div><div></div><div></div><div></div><div></div><div></div><div></div><div></div>
    <div></div><div></div><div></div><div></div><div></div><div></div><div></div><div></div>
    <div></div><div></div><div></div><div></div><div></div><div></div><div></div><div></div>
    <div></div><div></div><div></div><div></div><div></div><div></div><div></div><div></div>
    <div></div><div></div><div></div><div></div><div></div><div></div><div></div><div></div>
    <div></div><div></div><div></div><div></div><div></div><div></div><div></div><div></div>
    <div></div><div></div><div></div><div></div><div></div><div></div><div></div><div></div>
</div>

試試這個:

table.CHESS {
    border-collapse: collapse;
}

table.CHESS td {
    width: 50px;
    height: 50px;
    border: solid gray 1px;
}

table tr:nth-child(odd) td:nth-child(odd) {
    background: #000;
}

table tr:nth-child(even) td:nth-child(even) {
    background: #000;
}

完成了。樣本:http://jsfiddle.net/LFVQU/1/

<style type="text/css">
    #chess{
     width:800px;   
     height:800px;
     border:1px;
     border:1px solid #999;
    }
    #chess div{
     width:100px;
     height:100px;  
     float:left;  
    }
#chess div{background: #fff}
#chess div:nth-child(1), #chess div:nth-child(3), #chess div:nth-child(5), #chess div:nth-child(7),
#chess div:nth-child(10), #chess div:nth-child(12), #chess div:nth-child(14), #chess div:nth-child(16),
#chess div:nth-child(17), #chess div:nth-child(19), #chess div:nth-child(21), #chess div:nth-child(23),
#chess div:nth-child(26), #chess div:nth-child(28), #chess div:nth-child(30), #chess div:nth-child(32),
#chess div:nth-child(33), #chess div:nth-child(35), #chess div:nth-child(37), #chess div:nth-child(39),
#chess div:nth-child(42), #chess div:nth-child(44), #chess div:nth-child(46), #chess div:nth-child(48),
#chess div:nth-child(49), #chess div:nth-child(51), #chess div:nth-child(53), #chess div:nth-child(55),
#chess div:nth-child(58), #chess div:nth-child(60), #chess div:nth-child(62), #chess div:nth-child(64)
{
    background-color:#000;
} 
</style>

我認為使用float/clear的答案更好，這正是我想出的答案。

對于那些需要一個每個方格都有id的CSS3棋盤的人，我可以提出這個解決方案:

https://github.com/vpcom/CSS3-Chess-Board

這里有一個演示:http://vincentperrin.com/cr/css3/css3-chess-board/

它是用Sass (SCSS符號)完成的，但是你也可以使用經過處理的CSS文件。對于喜歡的人來說，這種東西也可以用玉來做。

盡情享受吧！

如果使用兩個重疊的容器是可以接受的，我認為有一個更簡單的& quot靜態& quot不使用花哨的css功能的方法:

.chess {
  position: absolute;
  display: grid;
  grid-template-columns: repeat(4, 25%);
  grid-template-rows: repeat(4, 25%);
}

#up > div {
  height: 50px;
  width:  50px;
  margin: 0px 50px 50px 0px;
  background-color: #000;
}

#down > div {
  height: 50px;
  width:  50px;
  margin: 50px 0px 0px 50px;
  background-color: #000;
}

<html>
<div id = "cont">
  <div id = "up" class="chess">
      <div></div><div></div><div></div><div></div><div></div><div></div><div></div><div></div>
      <div></div><div></div><div></div><div></div><div></div><div></div><div></div><div></div>

  </div>
  <div id = "down" class="chess">
      <div></div><div></div><div></div><div></div><div></div><div></div><div></div><div></div>
      <div></div><div></div><div></div><div></div><div></div><div></div><div></div><div></div>
  </div>
</div>
</html>

靈感來自BoltClocks小提琴

for(i=0;i<64;i++){chess.appendChild(document.createElement("div"))}

#chess {
    width: 8em;
    height: 8em;
    margin: 0.5em;
    border: 2px solid #808080;
}
#chess div {
    float: left;
    width: 1em;
    height: 1em;
    margin-left: 1em;
    background-color: #000;
}
#chess div:nth-child(8n+5){
  margin-left: 0;
}
#chess div:nth-child(32) ~ div{  /* we dont need those :D*/
  display: none;
}

<div id="chess"></div>

https://codepen.io/yogi-dad/pen/mdzPRzp

所有的區域都有相同的尺寸，所以你可以考慮在父元素上使用漸變顏色

#chess {
  /* define the size */
  width: 300px;
  aspect-ratio: 1;
  /* define the grid */
  display: grid;
  grid-template-columns: repeat(8, 1fr);
  grid-template-rows: repeat(8, 1fr);
  /* define the coloration */
  background:
   repeating-conic-gradient(white 0 25%,black 0 50%)
   0 0/calc(100%/4) calc(100%/4);

  
  border: 1px solid;
}

<div id="chess">
    <div></div><div></div><div></div><div></div><div></div><div></div><div></div><div></div>
    <div></div><div></div><div></div><div></div><div></div><div></div><div></div><div></div>
    <div></div><div></div><div></div><div></div><div></div><div></div><div></div><div></div>
    <div></div><div></div><div></div><div></div><div></div><div></div><div></div><div></div>
    <div></div><div></div><div></div><div></div><div></div><div></div><div></div><div></div>
    <div></div><div></div><div></div><div></div><div></div><div></div><div></div><div></div>
    <div></div><div></div><div></div><div></div><div></div><div></div><div></div><div></div>
    <div></div><div></div><div></div><div></div><div></div><div></div><div></div><div></div>
</div>

const HelloWorld = {
  template: '#tmpl',
  name: "HelloWorld",
  methods: {
    board (s) {
      return Array.from({length:s**2}).map((_,i)=>(parseInt(i/s,10)+1)%2===i%s%2)
    },
  },
};

new Vue({
  el: '#app',
  components: { HelloWorld },
  template: '<HelloWorld />'
})

.hello {
  display: grid;
  grid-template-columns: repeat(8, 20px);
}
.square {
  width: 20px;
  height: 20px;
}

<script src="https://cdnjs.cloudflare.com/ajax/libs/vue/2.5.17/vue.js"></script>

<script type="text/x-template" id="tmpl">
  <div class="hello">
    <div
      class="square"
      v-for="(square, idx) in board(8)"
      :key="idx"
      :style="{ background: square ? '#FFF' : '#000' }"
    ></div>
  </div>
</script>

<div id="app"></div>

讓我建議你更干凈的css:

.divTableRow:nth-child(odd) .divTableCell:nth-child(even), .divTableRow:nth-child(even) .divTableCell:nth-child(odd) {
        background: #999;
    }

.divTableRow:nth-child(odd) .divTableCell:nth-child(even), .divTableRow:nth-child(even) .divTableCell:nth-child(odd) {
    background: #999;
}

.divTable {
    display: table;
    width: 60%;
    float: left;
}
.divTableRow {
    display: table-row;
}
.divTableHeading {
    background-color: #EEE;
    display: table-header-group;
}
.divTableCell, .divTableHead {
    display: table-cell;
    padding: 3px 10px;
    height: 12.5%;
    width: 12.5%;
    text-align: center;
}
.divTableHeading {
    background-color: #EEE;
    display: table-header-group;
    font-weight: bold;
}
.divTableFoot {
    background-color: #EEE;
    display: table-footer-group;
    font-weight: bold;
}
.divTableBody {
    background: white;
    display: table-row-group;
}

<div class="divTable">
   <div class="divTableBody">
      <div class="divTableRow">
         <div class="divTableCell">
            <div id="black-rock1" class="draggable black">?</div>
         </div>
         <div class="divTableCell">
            <div id="black-knight1" class="draggable black">?</div>
         </div>
         <div class="divTableCell">
            <div id="black-bishop1" class="draggable black">?</div>
         </div>
         <div class="divTableCell">
            <div id="black-queen" class="draggable black">?</div>
         </div>
         <div class="divTableCell">
            <div id="black-king" class="draggable black">?</div>
         </div>
         <div class="divTableCell">
            <div id="black-bishop2" class="draggable black">?</div>
         </div>
         <div class="divTableCell">
            <div id="black-knight2" class="draggable black">?</div>
         </div>
         <div class="divTableCell">
            <div id="black-rack2" class="draggable black">?</div>
         </div>
      </div>
      <div class="divTableRow">
         <div class="divTableCell">
            <div id="black-pawn1" class="draggable black">?</div>
         </div>
         <div class="divTableCell">
            <div id="black-pawn2" class="draggable black">?</div>
         </div>
         <div class="divTableCell">
            <div id="black-pawn3" class="draggable black">?</div>
         </div>
         <div class="divTableCell">
            <div id="black-pawn4" class="draggable black">?</div>
         </div>
         <div class="divTableCell">
            <div id="black-pawn5" class="draggable black">?</div>
         </div>
         <div class="divTableCell">
            <div id="black-pawn6" class="draggable black">?</div>
         </div>
         <div class="divTableCell">
            <div id="black-pawn7" class="draggable black">?</div>
         </div>
         <div class="divTableCell">
            <div id="black-pawn8" class="draggable black">?</div>
         </div>
      </div>
      <div class="divTableRow">
         <div class="divTableCell">&nbsp;</div>
         <div class="divTableCell">&nbsp;</div>
         <div class="divTableCell">&nbsp;</div>
         <div class="divTableCell">&nbsp;</div>
         <div class="divTableCell">&nbsp;</div>
         <div class="divTableCell">&nbsp;</div>
         <div class="divTableCell">&nbsp;</div>
         <div class="divTableCell">&nbsp;</div>
      </div>
      <div class="divTableRow">
         <div class="divTableCell">&nbsp;</div>
         <div class="divTableCell">&nbsp;</div>
         <div class="divTableCell">&nbsp;</div>
         <div class="divTableCell">&nbsp;</div>
         <div class="divTableCell">&nbsp;</div>
         <div class="divTableCell">&nbsp;</div>
         <div class="divTableCell">&nbsp;</div>
         <div class="divTableCell">&nbsp;</div>
      </div>
      <div class="divTableRow">
         <div class="divTableCell">&nbsp;</div>
         <div class="divTableCell">&nbsp;</div>
         <div class="divTableCell">&nbsp;</div>
         <div class="divTableCell">&nbsp;</div>
         <div class="divTableCell">&nbsp;</div>
         <div class="divTableCell">&nbsp;</div>
         <div class="divTableCell">&nbsp;</div>
         <div class="divTableCell">&nbsp;</div>
      </div>
      <div class="divTableRow">
         <div class="divTableCell">&nbsp;</div>
         <div class="divTableCell">&nbsp;</div>
         <div class="divTableCell">&nbsp;</div>
         <div class="divTableCell">&nbsp;</div>
         <div class="divTableCell">&nbsp;</div>
         <div class="divTableCell">&nbsp;</div>
         <div class="divTableCell">&nbsp;</div>
         <div class="divTableCell">&nbsp;</div>
      </div>
      <div class="divTableRow">
         <div class="divTableCell">
            <div id="white-pawn1" class="draggable white">?</div>
         </div>
         <div class="divTableCell">
            <div id="white-pawn2" class="draggable white">?</div>
         </div>
         <div class="divTableCell">
            <div id="white-pawn3" class="draggable white">?</div>
         </div>
         <div class="divTableCell">
            <div id="white-pawn4" class="draggable white">?</div>
         </div>
         <div class="divTableCell">
            <div id="white-pawn5" class="draggable white">?</div>
         </div>
         <div class="divTableCell">
            <div id="white-pawn6" class="draggable white">?</div>
         </div>
         <div class="divTableCell">
            <div id="white-pawn7" class="draggable white">?</div>
         </div>
         <div class="divTableCell">
            <div id="white-pawn8" class="draggable white">?</div>
         </div>
      </div>
      <div class="divTableRow">
         <div class="divTableCell">
            <div id="white-rock1" class="draggable white">?</div>
         </div>
         <div class="divTableCell">
            <div id="white-knight1" class="draggable white">?</div>
         </div>
         <div class="divTableCell">
            <div id="white-bishop1" class="draggable white">?</div>
         </div>
         <div class="divTableCell">
            <div id="white-queen" class="draggable white">?</div>
         </div>
         <div class="divTableCell">
            <div id="white-king" class="draggable white">?</div>
         </div>
         <div class="divTableCell">
            <div id="white-bishop2" class="draggable white">?</div>
         </div>
         <div class="divTableCell">
            <div id="white-knight2" class="draggable white">?</div>
         </div>
         <div class="divTableCell">
            <div id="white-rack2" class="draggable white">?</div>
         </div>
      </div>
   </div>
</div>