Javascript 点击我按钮
我不知道我在这里做错了什么,但是Javascript 点击我按钮,javascript,html,css,Javascript,Html,Css,我不知道我在这里做错了什么,但是单击我按钮不起作用为什么?我想在第一个点击我改变第一段的颜色,第二个点击我改变第二段的颜色。在任何情况下,单击都不起作用。我必须查看我的函数,但看不出我做错了什么。也许需要创建其他功能使其工作?仅此而已,单击按钮无法处理该代码 <!DOCTYPE html> <html> <head> <h1>Tv Shows</h1> <div class="bg-image
单击我
按钮不起作用为什么?我想在第一个点击我改变第一段的颜色,第二个点击我改变第二段的颜色。在任何情况下,单击都不起作用。我必须查看我的函数,但看不出我做错了什么。也许需要创建其他功能使其工作?仅此而已,单击按钮无法处理该代码
<!DOCTYPE html>
<html>
<head>
<h1>Tv Shows</h1>
<div class="bg-image img1">
<p id="demo">My Top 5 Tv shows,is Prison Break,Wayward Pines,Mentalist,Lost,Usa shooter</p>
<button onclick="myFunction()">click me</button>
</div>
<div class="bg-image img2">
<p id="demo1">My Top 5 movies,is Run all Night ,Asterix and Obelix,,Lost,Usa
shooter</p>
<button onclick="myFunction()">click me</button>
</div>
<style>
body, html {
height: 100%;
margin: 0;
font-family: Arial, Helvetica, sans-serif;
}
* {
box-sizing: border-box;
}
.bg-image {
/* Full height */
height: 50%;
/* Center and scale the image nicely */
background-position: center;
background-repeat: no-repeat;
background-size: cover;
}
/* Images used */
.img1 { background-image: url("https://images.pexels.com/photos/1115804/pexels-photo-1115804.jpeg?auto=compress&cs=tinysrgb&dpr=2&h=750&w=1260"); }
.img2 { background-image: url("https://images.pexels.com/photos/3989816/pexels-photo-3989816.jpeg?auto=compress&cs=tinysrgb&dpr=2&h=750&w=1260"); }
/* Position text in the middle of the page/image */
.bg-text {
background-color: rgb(0,0,0); /* Fallback color */
background-color: rgba(0,0,0, 0.4); /* Black w/opacity/see-through */
color: white;
font-weight: bold;
font-size: 80px;
border: 10px solid #f1f1f1;
position: fixed;
top: 50%;
left: 50%;
transform: translate(-50%, -50%);
z-index: 2;
width: 300px;
padding: 20px;
text-align: center;
}
function myFunction() {
var x = document.getElementById("demo");
x.style.fontSize = "25px";
x.style.color = "red";
}
function mySec() {
var x = document.getElementById("demo1");
x.style.fontSize = "25px";
x.style.color = "green";
}
</style>
</head>
<body>
</body>
</html>
电视节目
我最喜欢的5个电视节目是《越狱》、《任性的松树》、《精神论者》、《迷失》、《美国射手》
点击我
我最喜欢的5部电影是通宵放映的,分别是《迷失》,美国
射手
点击我
正文,html{
身高:100%;
保证金:0;
字体系列:Arial、Helvetica、无衬线字体;
}
* {
框大小:边框框;
}
.bg图像{
/*全高*/
身高:50%;
/*将图像居中并精确缩放*/
背景位置:中心;
背景重复:无重复;
背景尺寸:封面;
}
/*使用的图像*/
.img1{背景图像:url(“https://images.pexels.com/photos/1115804/pexels-photo-1115804.jpeg?auto=compress&cs=tinysrgb&dpr=2&h=750&w=1260"); }
.img2{背景图像:url(“https://images.pexels.com/photos/3989816/pexels-photo-3989816.jpeg?auto=compress&cs=tinysrgb&dpr=2&h=750&w=1260"); }
*在页面/图像中间位置的文本*/
.bg文本{
背景色:rgb(0,0,0);/*回退色*/
背景色:rgba(0,0,0,0.4);/*黑色w/不透明度/透明*/
颜色:白色;
字体大小:粗体;
字号:80px;
边框:10px实心#f1f1;
位置:固定;
最高:50%;
左:50%;
转换:翻译(-50%,-50%);
z指数:2;
宽度:300px;
填充:20px;
文本对齐:居中;
}
函数myFunction(){
var x=document.getElementById(“演示”);
x、 style.fontSize=“25px”;
x、 style.color=“红色”;
}
函数mySec(){
var x=document.getElementById(“demo1”);
x、 style.fontSize=“25px”;
x、 style.color=“绿色”;
}
仅使用标记脚本一些代码/脚本
函数myFunction(){
var x=document.getElementById(“演示”);
x、 style.fontSize=“25px”;
x、 style.color=“红色”;
}
函数mySec(){
var x=document.getElementById(“demo1”);
x、 style.fontSize=“25px”;
x、 style.color=“绿色”;
}
电视节目
我最喜欢的5个电视节目是《越狱》、《任性的松树》、《精神论者》、《迷失》、《美国射手》
点击我
我最喜欢的5部电影是通宵放映的,分别是《迷失》,美国
射手
点击我
正文,html{
身高:100%;
保证金:0;
字体系列:Arial、Helvetica、无衬线字体;
}
* {
框大小:边框框;
}
.bg图像{
/*全高*/
身高:50%;
/*将图像居中并精确缩放*/
背景位置:中心;
背景重复:无重复;
背景尺寸:封面;
}
/*使用的图像*/
.img1{背景图像:url(“https://images.pexels.com/photos/1115804/pexels-photo-1115804.jpeg?auto=compress&cs=tinysrgb&dpr=2&h=750&w=1260"); }
.img2{背景图像:url(“https://images.pexels.com/photos/3989816/pexels-photo-3989816.jpeg?auto=compress&cs=tinysrgb&dpr=2&h=750&w=1260"); }
*在页面/图像中间位置的文本*/
.bg文本{
背景色:rgb(0,0,0);/*回退色*/
背景色:rgba(0,0,0,0.4);/*黑色w/不透明度/透明*/
颜色:白色;
字体大小:粗体;
字号:80px;
边框:10px实心#f1f1;
位置:固定;
最高:50%;
左:50%;
转换:翻译(-50%,-50%);
z指数:2;
宽度:300px;
填充:20px;
文本对齐:居中;
}
你能这样试试吗?我编辑了错误的标签
<!DOCTYPE html>
<html lang="en">
<head>
<meta charset="UTF-8">
<meta name="viewport" content="width=device-width, initial-scale=1.0">
<meta http-equiv="X-UA-Compatible" content="ie=edge">
<style>
body,
html {
height: 100%;
margin: 0;
font-family: Arial, Helvetica, sans-serif;
}
* {
box-sizing: border-box;
}
.bg-image {
/* Full height */
height: 50%;
/* Center and scale the image nicely */
background-position: center;
background-repeat: no-repeat;
background-size: cover;
}
/* Images used */
.img1 {
background-image: url("https://images.pexels.com/photos/1115804/pexels-photo-1115804.jpeg?auto=compress&cs=tinysrgb&dpr=2&h=750&w=1260");
}
.img2 {
background-image: url("https://images.pexels.com/photos/3989816/pexels-photo-3989816.jpeg?auto=compress&cs=tinysrgb&dpr=2&h=750&w=1260");
}
/* Position text in the middle of the page/image */
.bg-text {
background-color: rgb(0, 0, 0);
/* Fallback color */
background-color: rgba(0, 0, 0, 0.4);
/* Black w/opacity/see-through */
color: white;
font-weight: bold;
font-size: 80px;
border: 10px solid #f1f1f1;
position: fixed;
top: 50%;
left: 50%;
transform: translate(-50%, -50%);
z-index: 2;
width: 300px;
padding: 20px;
text-align: center;
}
</style>
</head>
<body>
<h1>Tv Shows</h1>
<div class="bg-image img1">
<p id="demo">My Top 5 Tv shows,is Prison Break,Wayward Pines,Mentalist,Lost,Usa shooter</p>
<button onclick="myFunction()">click me</button>
</div>
<div class="bg-image img2">
<p id="demo1">My Top 5 movies,is Run all Night ,Asterix and Obelix,,Lost,Usa
shooter</p>
<button onclick="myFunction()">click me</button>
</div>
<script>
function myFunction() {
var x = document.getElementById("demo");
x.style.fontSize = "25px";
x.style.color = "red";
}
function mySec() {
var x = document.getElementById("demo1");
x.style.fontSize = "25px";
x.style.color = "green";
}
</script>
</body>
</html>
身体
html{
身高:100%;
保证金:0;
字体系列:Arial、Helvetica、无衬线字体;
}
* {
框大小:边框框;
}
.bg图像{
/*全高*/
身高:50%;
/*将图像居中并精确缩放*/
背景位置:中心;
背景重复:无重复;
背景尺寸:封面;
}
/*使用的图像*/
.img1{
背景图像:url(“https://images.pexels.com/photos/1115804/pexels-photo-1115804.jpeg?auto=compress&cs=tinysrgb&dpr=2&h=750&w=1260");
}
.img2{
背景图像:url(“https://images.pexels.com/photos/3989816/pexels-photo-3989816.jpeg?auto=compress&cs=tinysrgb&dpr=2&h=750&w=1260");
}
*在页面/图像中间位置的文本*/
.bg文本{
背景色:rgb(0,0,0);
/*退色*/
背景色:rgba(0,0,0,0.4);
/*黑色w/不透明度/透明*/
颜色:白色;
字体大小:粗体;
字号:80px;
边框:10px实心#f1f1;
位置:固定;
最高:50%;
左:50%;
转换:翻译(-50%,-50%);
z指数:2;
宽度:300px;
填充:20px;
文本对齐:居中;
}
电视节目
我最喜欢的5个电视节目是《越狱》、《任性的松树》、《精神论者》、《迷失》、《美国射手》
点击我
我最喜欢的5部电影是通宵放映的,分别是《迷失》,美国
射手
点击我
函数myFunction(){
变量x
<!DOCTYPE html>
<html>
<head>
<style>
body, html { height: 100%; margin: 0; font-family: Arial, Helvetica, sans-serif; } * { box-sizing: border-box; } .bg-image { /* Full height */ height: 50%; /* Center and scale the image nicely */ background-position: center; background-repeat: no-repeat; background-size: cover; } /* Images used */ .img1 { background-image: url("https://images.pexels.com/photos/1115804/pexels-photo-1115804.jpeg?auto=compress&cs=tinysrgb&dpr=2&h=750&w=1260"); } .img2 { background-image: url("https://images.pexels.com/photos/3989816/pexels-photo-3989816.jpeg?auto=compress&cs=tinysrgb&dpr=2&h=750&w=1260"); } /* Position text in the middle of the page/image */ .bg-text { background-color: rgb(0,0,0); /* Fallback color */ background-color: rgba(0,0,0, 0.4); /* Black w/opacity/see-through */ color: white; font-weight: bold; font-size: 80px; border: 10px solid #f1f1f1; position: fixed; top: 50%; left: 50%; transform: translate(-50%, -50%); z-index: 2; width: 300px; padding: 20px; text-align: center; }
</style>
<script> function myFunction() { var x = document.getElementById("demo"); x.style.fontSize = "25px"; x.style.color = "red"; } function mySec() { var x = document.getElementById("demo1"); x.style.fontSize = "25px"; x.style.color = "green"; }
</script>
</head>
<body>
<h1>Tv Shows</h1>
<div class="bg-image img1">
<p id="demo">My Top 5 Tv shows,is Prison Break,Wayward Pines,Mentalist,Lost,Usa shooter</p>
<button onclick="myFunction()">click me</button>
</div>
<div class="bg-image img2">
<p id="demo1">My Top 5 movies,is Run all Night ,Asterix and Obelix,,Lost,Usa shooter</p>
<button onclick="myFunction()">click me</button>
</div>
</body>
</html>
<html>
<head>
<style>
body,
html {
height: 100%;
margin: 0;
font-family: Arial, Helvetica, sans-serif;
}
* {
box-sizing: border-box;
}
.bg-image {
/* Full height */
height: 50%;
/* Center and scale the image nicely */
background-position: center;
background-repeat: no-repeat;
background-size: cover;
}
/* Images used */
.img1 {
background-image: url("https://images.pexels.com/photos/1115804/pexels-photo-1115804.jpeg?auto=compress&cs=tinysrgb&dpr=2&h=750&w=1260");
}
.img2 {
background-image: url("https://images.pexels.com/photos/3989816/pexels-photo-3989816.jpeg?auto=compress&cs=tinysrgb&dpr=2&h=750&w=1260");
}
/* Position text in the middle of the page/image */
.bg-text {
background-color: rgb(0, 0, 0);
/* Fallback color */
background-color: rgba(0, 0, 0, 0.4);
/* Black w/opacity/see-through */
color: white;
font-weight: bold;
font-size: 80px;
border: 10px solid #f1f1f1;
position: fixed;
top: 50%;
left: 50%;
transform: translate(-50%, -50%);
z-index: 2;
width: 300px;
padding: 20px;
text-align: center;
}
</style>
</head>
<body>
<h1>Tv Shows</h1>
<div class="bg-image img1">
<p id="demo">My Top 5 Tv shows,is Prison Break,Wayward Pines,Mentalist,Lost,Usa shooter</p>
<button onclick="myFunction('demo')">click me</button>
</div>
<div class="bg-image img2">
<p id="demo1">My Top 5 movies,is Run all Night ,Asterix and Obelix,,Lost,Usa shooter
</p>
<button onclick="myFunction('demo1')">click me</button>
</div>
<script>
function myFunction(id) {
var x = document.getElementById(id);
x.style.fontSize = "25px";
x.style.color = "red";
}
</script>
</body>
</html>