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Why doesn't my Bootstrap navigation bar render correctly?

I'm trying to make a navigation bar using Bootstrap4 but my code doesn't seem to work. My code is almost ident...

From [HTMLdiscussion group] 2023-09-16 16:14:06 0  1  1040

css - 為什么我的：before 在服務(wù)器上不能顯示？

table2 p:before{ content:"￥"; } 在服務(wù)器上顯示亂碼，后面的數(shù)字是后端傳上去的

From [HTMLdiscussion group] 2017-04-17 12:01:54 0  4  1039

html5 - Two swipers are initialized in one page. I don't know what's wrong. It's always wrong.

{code...}

From [HTMLdiscussion group] 2017-06-27 09:19:50 0  1  1038

After sealing the object with Object.seal() in es5, can the properties on the object prototype be modified?

mdn's explanation is that this translation does not affect the attributes inherited on the prototype, but the ...

From [HTMLdiscussion group] 2017-06-10 09:49:20 0  2  1038

javascript - How to make the code on the mobile phone only execute on the mobile phone and not in the simulator on the PC

How to make the code on the mobile phone only execute on the mobile phone and not in the simulator on the PC s...

From [HTMLdiscussion group] 2017-05-16 13:29:49 0  3  1038

css - section標(biāo)簽不推薦加樣式？

一個(gè)section通常由內(nèi)容及其標(biāo)題組成，但section元素標(biāo)簽并非一個(gè)普通的容器元素；當(dāng)一個(gè)容器需要被直接定義樣式或通過(guò)腳本定義行為時(shí)，推薦使用div元素而非section。 以上是網(wǎng)上一些文章的觀(guān)點(diǎn)，不過(guò)不是很理解...

From [HTMLdiscussion group] 2017-04-17 12:08:40 0  2  1038

javascript - charles map remote mapping problem

Local address: localhost:8180/index.php?m=get_more_video&type_name=good_show The interface address I want ...

From [HTMLdiscussion group] 2017-05-16 13:36:37 0  3  1037

css - background-position使用疑惑。

DEMO 我看文檔上是這樣寫(xiě)的: A percentage for the horizontal offset is relative to (width of background positioning area -...

From [HTMLdiscussion group] 2017-04-17 13:54:53 0  6  1037

css中怎么命名顏色比較好？

比如#ff0000,我該是用具體的顏色名來(lái)命名呢，還是用語(yǔ)義來(lái)命名呢？1.用顏色名命名: .c-red{color:#ff0000;}優(yōu)點(diǎn)：是什么顏色一眼就能看出來(lái)，并且html中可以到處復(fù)用缺點(diǎn)：如果我要修改#ff00...

From [HTMLdiscussion group] 2016-11-07 13:52:26 0  1  1037

javascript - About unicode emoji expression issues

This is to find a unicode encoding table {code...}. Take the first sun \ue04a and output \ue04a in the console...

From [HTMLdiscussion group] 2017-06-24 09:44:01 0  1  1036

css - 在絕對(duì)定位的情況下怎么讓div居中呢？

{代碼...}

From [HTMLdiscussion group] 2017-04-17 13:43:56 0  5  1036

求解，為什么這樣用nth-of-type選不了元素？

From [HTMLdiscussion group] 2016-11-12 13:10:35 0  1  1036

id選擇器和類(lèi)選擇器的用法除了標(biāo)簽設(shè)置和#區(qū)別外還有 哪些？

From [HTMLdiscussion group] 2016-12-21 15:50:59 0  2  1035

css - 移動(dòng)端布局，Safari中absolute定位抖動(dòng)？

{代碼...} 在Safari中繼續(xù)滑動(dòng)，固定的元素會(huì)抖動(dòng)，求解？

From [HTMLdiscussion group] 2017-04-17 14:52:11 0  1  1035

html5 - pdf.js在線(xiàn)打印pdf，在IE11上打印部分空白

問(wèn)題：pdf文件是一個(gè)繁體文檔，在chrome中打印時(shí)正常，在IE11中打印時(shí)下半頁(yè)空白。正常情況pdf縱向由文字1，表格，空白區(qū)，文字2組成，IE11的空白部分是空白區(qū)，文字2，大概占60%頁(yè)高。補(bǔ)充信息：1.網(wǎng)上了解...

From [HTMLdiscussion group] 2017-04-17 13:33:14 0  1  1034