![](/img/trans.png)
[英]CSS aligning background-image above background-color set in *:before and *:after
[英]How to set background-image above background-color
我想在background-color
上方設置background-image
( background-image
是一條線)。 請參閱codepen和snippet:
table { border-collapse: collapse; } table, td { border: 1px solid black; } td.class1 { background: transparent url(http://davidrhysthomas.co.uk/linked/strike.png) repeat-x; } .class2 { text-align: center; color: #fff; height: 20px; width: 20px; background-color: red; border-radius: 5rem !important; display: inline-block; }
<table> <tr> <td>S</td> <td>B</td> </tr> <tr> <td>S</td> <td class="class1"> <span class="class2">S</span> </td> </tr> </table>
請注意,不是在兩個類上設置背景,而是可以使用background: url(http://davidrhysthomas.co.uk/linked/strike.png) repeat-x, red
(首先提到的圖像background: url(http://davidrhysthomas.co.uk/linked/strike.png) repeat-x, red
將它設置在.class2
中。堆疊在最后提到的紅色背景上) - 見下面的演示:
table { border-collapse: collapse; } table, td { border: 1px solid black; } td.class1 { padding: 10px; /* for illustration */ } .class2 { text-align: center; color: #fff; height: 20px; width: 20px; background: url(http://davidrhysthomas.co.uk/linked/strike.png) repeat-x, red; /* changed*/ border-radius: 5rem !important; display: inline-block; }
<table> <tr> <td>S</td> <td>B</td> </tr> <tr> <td>S</td> <td class="class1"> <span class="class2">S</span> </td> </tr> </table>
如果您想讓背景圖像延伸到整個td
,一個選項是對紅色圓圈使用radial-gradient
,並將其與線條的背景圖像組合。 請注意,此處文本位於紅色背景顏色和線條上方 :
table { border-collapse: collapse; } table, td{ border: 1px solid black; } td.class1 { position: relative; width: 20px; height: 20px; padding: 10px; background: url(http://davidrhysthomas.co.uk/linked/strike.png) repeat-x, radial-gradient(farthest-side,red 70%, transparent 72%); background-position: center; text-align: center; color: #fff; }
<table> <tr> <td>S</td> <td>B</td> </tr> <tr> <td>S</td> <td class="class1"> <span class="class2">S</span> </td> </tr> </table>
如果你想要一個刪除線效果 ,你可以將行background-image
放在<span>
背景和文本上,在<span>
上使用負z-index
- 見下面的演示:
table { border-collapse: collapse; } table, td { border: 1px solid black; } td.class1 { padding: 10px; /* for illustration */ background: transparent url(http://davidrhysthomas.co.uk/linked/strike.png) repeat-x; background-position: center; } .class2 { text-align: center; color: #fff; height: 20px; width: 20px; background-color: red; border-radius: 5rem !important; display: inline-block; position: relative; /* added */ z-index: -1; /* added */ }
<table> <tr> <td>S</td> <td>B</td> </tr> <tr> <td>S</td> <td class="class1"> <span class="class2">S</span> </td> </tr> </table>
刪除線效果的另一個選擇是使用偽元素,這樣您就不必亂用z-index
- 請參閱下面的演示:
table { border-collapse: collapse; } table, td { border: 1px solid black; } td.class1 { /* added */ padding: 10px; /* for illustration */ position: relative; } td.class1:after { /* added */ content: ''; position: absolute; top: 0; left: 0; width: 100%; height: 100%; background: transparent url(http://davidrhysthomas.co.uk/linked/strike.png) repeat-x; background-position: center; /* added */ } .class2 { text-align: center; color: #fff; height: 20px; width: 20px; background-color: red; border-radius: 5rem !important; display: inline-block; }
<table> <tr> <td>S</td> <td>B</td> </tr> <tr> <td>S</td> <td class="class1"> <span class="class2">S</span> </td> </tr> </table>
你不需要有一個名為table.class1
的不同類,而不是這樣
.class2 {
text-align: center;
color: #fff;
height: 20px;
width: 20px;
border-radius: 5rem !important;
display: inline-block;
background: transparent url(http://davidrhysthomas.co.uk/linked/strike.png) repeat-x;
background-color: red;
}
聲明:本站的技術帖子網頁,遵循CC BY-SA 4.0協議,如果您需要轉載,請注明本站網址或者原文地址。任何問題請咨詢:yoyou2525@163.com.