在页面加载时自动更改html属性 [英] Automatically change html attributes on page load
问题描述
我正在尝试创建Google Chrome自定义主题(在新标签页上显示的图片)。然而,这些最后访问过的小盒子挡住了图像的一部分,尽我所能,我找不到可以摆脱它们的任何扩展或主题。我知道需要做出什么改变才能实现这一点;该页面的HTML包含以下行:
< div id =mv-tilesstyle =opacity:1; > == $ 0
我只需要改变 style
到opacity:0;
。我可以使用Excel中的静态HTML(使用 getElementById(mv-tiles)。style =opacity:0;
或类似的东西)做到这一点。
但是我怎样才能动态地做到这一点,无论何时我打开新的标签页 - 不是从Excel中,只要使用我的.Chson主题中的.JSON文件,或者使用一些插件? / p>
更新
我只是将提供的代码插入到我的JSON文件中 - 然后我在记事本中创建了一个文件我粘贴了JS代码,将它保存为 content.js
。最后,我将整个文件夹拖入Chrome扩展页面,将其保存为.crx包,然后进行安装。这是我完成的 manifest.json
文件:
{
manifest_version:2,
permissions:[
< all_urls>
],
content_scripts:[
{
matches:[
http:// * / *,
https: // * / *
,
js:[
content.js
],
run_at:document_end$ b $
主题:{
images:[],
colors:{
frame:[
] 66,
116,
201
],
工具栏:[
223,
223,
223
] ,
tab_text:[
0,
0,
0
],
tab_background_text:[
64,
64,
64
],
bookmark_text:[
18,
50,
114
],
ntp_background:[
255,
255,
255
],
ntp_text:[
0,
0,
0
],
button_background:[
0,
0,
0,
0
]
},
tints:{
buttons:[
0,
0,
0.5
]
},
属性:{
ntp_background_alignment:bottom,
ntp_background_repeat:不重复
}
},
name:测试主题,
版本:1,
description:删除缩略图
}
主题显示正常,但JS将无法运行!)
在 manifest.json
permissions:[< all_urls>],
content_scripts :[
{
matches:[
http:// * / *,
https:// * / *
],
js:[content.js],
run_at:document_end//关注这一行
}
],
和你的 content.js
(function(window,chrome){
使用严格;
var doc = window.document;
doc.getElementById(mv-tiles)。style.opacity =0;
}(window,chrome));
I am trying to create a Google Chrome custom theme (an image displayed on the new tab page). However there are these little last visited boxes blocking out part of the image, and try as I might, I can't find any extension or theme online which can get rid of them. I know what changes need to be made to achieve this; the HTML of the page contains this line:
<div id="mv-tiles" style="opacity: 1;"> == $0
and I just need to change style
to "opacity: 0;"
. I could do this with the static HTML from Excel (with getElementById("mv-tiles").style = "opacity: 0;"
or something like that)
But how do I do this dynamically, whenever I open the new tab page - not from Excel, just either with my .JSON file from the chrome theme, or with some addon?
Update
I just inserted the provided code into my JSON file as below - I then created a file in notepad where I pasted the JS code, saved it as content.js
. Finally I dragged the whole folder into the chrome extensions page to save it as a .crx pack, and then installed it. Here is my finished manifest.json
file:
{
"manifest_version": 2,
"permissions": [
"<all_urls>"
],
"content_scripts": [
{
"matches": [
"http://*/*",
"https://*/*"
],
"js": [
"content.js"
],
"run_at": "document_end"
}
],
"theme": {
"images": [],
"colors": {
"frame": [
66,
116,
201
],
"toolbar": [
223,
223,
223
],
"tab_text": [
0,
0,
0
],
"tab_background_text": [
64,
64,
64
],
"bookmark_text": [
18,
50,
114
],
"ntp_background": [
255,
255,
255
],
"ntp_text": [
0,
0,
0
],
"button_background": [
0,
0,
0,
0
]
},
"tints": {
"buttons": [
0,
0,
0.5
]
},
"properties": {
"ntp_background_alignment": "bottom",
"ntp_background_repeat": "no-repeat"
}
},
"name": "Test Theme",
"version": "1",
"description": "Removes thumbnails"
}
It is not working as expected (the theme appears fine but the JS won't run!)
in your manifest.json
"permissions": ["<all_urls>"],
"content_scripts": [
{
"matches": [
"http://*/*",
"https://*/*"
],
"js": ["content.js"],
"run_at": "document_end" // pay attention to this line
}
],
and in your content.js
(function(window, chrome){
"use strict";
var doc = window.document;
doc.getElementById("mv-tiles").style.opacity = "0";
}(window, chrome));
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