基本上，我想按一个按钮（与一个人匹配），弹出一个另一个页面的弹出窗口（现在使用模态），这将根据它是一个人而变化。我正在使用w3school的基本模板，我可以使用一个按钮，但是当我尝试在列表中添加一个按钮以匹配某个人时，该模式不会打开。显然，要将每个按钮分配给一个人，他们将需要拥有自己的元素ID，但为什么我甚至无法使用一个按钮来工作？ 它在地图上显示＆＃34;＆＃34;下面的代码段中的按钮。 最重要的＆＃34;在地图上显示＆＃34;按钮工作的意义在于它会调出模态，但列表中的相同按钮不起作用。
提前谢谢。
// Get the modal
var modal = document.getElementById('myModal');
// Get the button that opens the modal
var btn = document.getElementById("myBtn");
// Get the <span> element that closes the modal
var span = document.getElementsByClassName("close")[0];
// When the user clicks the button, open the modal
btn.onclick = function() {
modal.style.display = "block";
}
// When the user clicks on <span> (x), close the modal
span.onclick = function() {
modal.style.display = "none";
}
// When the user clicks anywhere outside of the modal, close it
window.onclick = function(event) {
if (event.target == modal) {
modal.style.display = "none";
}
}/*DESKTOP*/
/* The Modal (background) */
@media screen and (min-width: 801px) {
.modal {
display: none;
/* Hidden by default */
position: fixed;
/* Stay in place */
z-index: 1;
/* Sit on top */
width: 100%;
/* Full width */
height: 100%;
/* Full height */
overflow: hidden;
/* Enable scroll if needed */
background-color: rgb(0, 0, 0);
/* Fallback color */
background-color: rgba(0, 0, 0, .4);
/* Black w/ opacity */
-webkit-animation-name: fadeIn;
/* Fade in the background */
-webkit-animation-duration: 0.4s;
animation-name: fadeIn;
animation-duration: 0.4s
}
/* Modal Content */
.modal-content {
position: relative;
bottom: 0;
background-color: clear;
width: 500px;
height: 700px;
margin: 0% auto 15% auto;
/* 5% from the top, 15% from the bottom and centered */
-webkit-animation-name: slideIn;
-webkit-animation-duration: 0.4s;
animation-name: slideIn;
animation-duration: 0.4s;
border: solid 2px;
border-color: #ffc948;
overflow: hidden;
}
/* The Close Button */
.close {
color: white;
float: right;
font-size: 28px;
font-weight: bold;
}
.close:hover,
.close:focus {
color: #000;
text-decoration: none;
cursor: pointer;
}
.modal-header {
padding: 2px 16px;
background-color: #640006;
color: white;
height: 2em;
}
.modal-body {
height: 100%;
width: 100%;
overflow: hidden;
}
/* Add Animation */
@-webkit-keyframes slideIn {
from {
bottom: -300px;
opacity: 0
}
to {
bottom: 0;
opacity: 1
}
}
@keyframes slideIn {
from {
bottom: -300px;
opacity: 0
}
to {
bottom: 0;
opacity: 1
}
}
@-webkit-keyframes fadeIn {
from {
opacity: 0
}
to {
opacity: 1
}
}
@keyframes fadeIn {
from {
opacity: 0
}
to {
opacity: 1
}
}
* {
margin: 0;
padding: 0;
-webkit-box-sizing: border-box;
}
}
/*MOBILE*/
/* The Modal (background) */
@media screen and (max-width: 800px) {
.modal {
display: none;
/* Hidden by default */
position: fixed;
/* Stay in place */
z-index: 1;
/* Sit on top */
width: 100%;
/* Full width */
height: 100%;
/* Full height */
overflow: hidden;
/* Enable scroll if needed */
background-color: rgb(0, 0, 0);
/* Fallback color */
background-color: rgba(0, 0, 0, .4);
/* Black w/ opacity */
-webkit-animation-name: fadeIn;
/* Fade in the background */
-webkit-animation-duration: 0.4s;
animation-name: fadeIn;
animation-duration: 0.4s
}
/* Modal Content */
.modal-content {
position: relative;
bottom: 0;
background-color: clear;
width: 500px;
height: 700px;
margin: 0% auto 15% auto;
/* 5% from the top, 15% from the bottom and centered */
-webkit-animation-name: slideIn;
-webkit-animation-duration: 0.4s;
animation-name: slideIn;
animation-duration: 0.4s;
border: solid 2px;
border-color: #ffc948;
overflow: hidden;
}
/* The Close Button */
.close {
color: white;
float: right;
font-size: 28px;
font-weight: bold;
}
.close:hover,
.close:focus {
color: #000;
text-decoration: none;
cursor: pointer;
}
.modal-header {
padding: 2px 16px;
background-color: #640006;
color: white;
height: 2em;
}
.modal-body {
height: 100%;
width: 100%;
overflow: hidden;
}
/* Add Animation */
@-webkit-keyframes slideIn {
from {
bottom: -300px;
opacity: 0
}
to {
bottom: 0;
opacity: 1
}
}
@keyframes slideIn {
from {
bottom: -300px;
opacity: 0
}
to {
bottom: 0;
opacity: 1
}
}
@-webkit-keyframes fadeIn {
from {
opacity: 0
}
to {
opacity: 1
}
}
@keyframes fadeIn {
from {
opacity: 0
}
to {
opacity: 1
}
}
* {
margin: 0;
padding: 0;
-webkit-box-sizing: border-box;
}
}
html,
body {
height: 100%;
width: 100%;
overflow: hidden;
background-color: #810008;
}
a.menu-link {
color: #ffc948;
display: block;
text-decoration: none;
padding-top: 25px;
}
.menu-link span {
border-bottom: solid 3px #000;
border-top: double 10px #000;
display: inline-block;
height: 4px;
margin: 0 5px -3px 0;
width: 30px;
}
.menu-link:hover span {
border-color: #666;
}
.menu,
.menu > ul,
.menu > ul ul {
clear: both;
display: flex;
flex-flow: column;
margin: 0;
width: 70%;
margin-left: 15%;
margin-right: 15%;
padding-left: 15%;
}
.menu.active {
background: #640006;
border-bottom: 1px solid #64006;
border-top: 1px solid #64006;
margin: 1em 0 1em -12px;
max-height: 55em;
width: 100vw;
}
.js .menu > ul ul.active {
margin: 0;
max-height: 55em;
padding: 0;
}
.menu > ul {
padding: 0;
}
nav li {
display: inline-block;
margin: 0;
position: relative;
}
.menu li a {
color: #ffc948;
display: inline-block;
font-size: 1.04em;
letter-spacing: .05em;
line-height: 2.5em;
text-decoration: none;
}
span.has-subnav {
display: block;
font-size: 1em;
line-height: 2.5em;
position: absolute;
right: 20px;
padding: 0 0.5em;
top: 0;
}
/*NAV MENU CSS MOBILE */
@media screen and (max-width: 800px) {
.menu,
.menu > ul ul {
margin: 0;
max-height: 0;
overflow: hidden;
}
.menu li a {
border-bottom: 1px solid #ffc948;
display: block;
padding-left: 15px;
}
.menu li li a {
padding-left: 50px;
}
.menu li:last-child a {
border: none;
}
.menu li li:last-child a {
border-bottom: 1px solid #ffc948;
}
.menu li:hover {
background: #640006;
}
}
.menu li a:hover {
background: #ffc948;
color: black;
}
/*NAV MENU CSS DESKTOP*/
@media screen and (min-width: 801px) {
nav {
border-bottom: 1px solid #ffc948;
}
a.menu-link {
display: none;
}
.js .menu,
.js .menu > ul ul {
max-height: none;
overflow: visible;
}
.js .menu > ul li:hover > ul {
display: flex;
}
.menu ul {
display: flex;
flex-flow: row;
height: 44px;
justify-content: space-between;
margin: 0;
padding: 0;
}
.menu span.has-subnav {
display: none;
}
.menu li a:hover {
color: rgb(0, 0, 0);
}
.menu li li a:hover {
background: rgba(0, 0, 0, 0.1);
color: #fff;
}
.menu ul ul {
background: #640006;
border: solid 1px rgba(0, 0, 0, 1);
border-radius: 2px 2px 5px 5px;
border-top: solid 2px transparent;
display: none;
height: auto;
overflow: hidden;
padding: 0;
position: absolute;
text-align: left;
top: 43px;
width: 150px;
z-index: 999;
}
.chrome .js .menu > ul ul {
top: 43px;
}
.menu ul ul.wide {
width: 300px;
}
.menu ul ul li {
border-bottom: solid 1px rgba(0, 0, 0, 0.5);
display: inline-block;
position: relative;
}
.menu > ul ul li:last-child {
border-bottom: none;
}
.menu ul ul li a {
display: block;
padding-left: 10px;
}
}
a {
text-decoration: none;
color: #ffc948;
}
ul,
li {
list-style: none;
vertical-align: middle;
}
ul.list {
padding-left: 20px;
}
.alphalist {
position: fixed;
right: 0;
font-size: 12px;
text-align: center;
display: inline-block;
z-index: 2;
top: auto;
height: 100%;
}
.list li {
border-bottom: 1px solid #ffc948;
line-height: 44px;
height: 44px;
}
.list .divider {
font-size: 20px;
font-weight: bold;
background: #fafafa;
box-shadow: -60px 0 0 #fafafa;
line-height: 28px;
height: 28px;
margin-top: -1px;
position: -webkit-sticky;
top: 44px;
}
h1 {
color: #ffc948;
font-size: 30px;
font-family: "Baskerville Old Face";
letter-spacing: 4px;
text-align: center;
line-height: 30px;
}
h2 {
color: #ffc948;
font-size: 20px;
font-family: "Baskerville Old Face";
letter-spacing: 4px;
text-align: center;
line-height: auto;
margin: auto;
}
h3 {
line-height: 44px;
height: 44px;
color: #ffc948;
width: 100%;
position: absolute;
text-align: center;
z-index: 10;
}
#scrolling {
padding-top: 44px;
padding-right: auto;
overflow: scroll;
-webkit-overflow-scrolling: touch;
height: 100%;
width: 100%;
position: absolute;
z-index: 0;
}
@media (-webkit-min-device-pixel-ratio: 2) {
.list .divider {
top: 0;
}
}
.modal-button {
background-color: #fafafa;
border: none;
color: black;
padding: 8px 16px;
text-align: center;
text-decoration: none;
display: inline-block;
font-size: inherit;
margin: 4px 2%;
float: right;
cursor: pointer;
}
.button {
background-color: #fafafa;
border: none;
color: black;
padding: 8px 16px;
text-align: center;
text-decoration: none;
display: inline-block;
font-size: inherit;
margin: 4px 2%;
float: right;
cursor: pointer;
}<button id="myBtn">Show on Map</button>
<!-- The Modal -->
<div id="myModal" class="modal">
<!-- Modal content -->
<div class="modal-content">
<div class="modal-header">
<span class="close">×</span>
<h2>Career Fair Map</h2>
</div>
<div class="modal-body">
<iframe src="map.html" width="500px" height="700px">
</iframe>
</div>
</div>
</div>
<div id="scrolling">
<ul class="list">
<li class="divider" id="a">A</li>
<li><a href="#">Amelia Webster</a>
<button class="button" onclick="alert('## has been added to favorites.')">Favorite</button>
<button class="button" id="myBtn">Show on Map</button>
<li><a href="#">Andrew WifKinson</a>
</li>
<li><a href="#">Archibald Carrington</a>
<button class="modal-button" id="myBtn">Show on Map</button>
</li>
<li><a href="#">Ariana Clapton</a>
</li>
<li><a href="#">Ashley Carter</a>
</li>
<li class="divider" id="b">B</li>
<li><a href="#">Barney Mercer</a>
</li>
<li><a href="#">Barry Goodman</a>
</li>
<li><a href="#">Brenda Brown</a>
</li>
<li><a href="#">Brooke Creighton</a>
</li>
<li class="divider" id="c">C</li>
<li><a href="#">Camilla Kapinksy</a>
</li>
<li><a href="#">Caroline Miller</a>
</li>
<li><a href="#">Charlotte Gardner</a>
</li>
<li><a href="#">Cynthia Monroe</a>
</li>
<li class="divider" id="e">E</li>
<li><a href="#">Elizabeth Abramson</a>
</li>
<li><a href="#">Elizabeth Cook</a>
</li>
<li><a href="#">Ernie Carter</a>
</li>
<li><a href="#">Evelyn Nash</a>
</li>
<li class="divider" id="f">F</li>
<li><a href="#">Fyodor Dostoevsky</a>
</li>
</ul>
</div>
答案 0 :(得分：0)
在HTML中，id属性是唯一的。因此，您只能绑定到id为myBtn的第一个按钮（我按ID获取元素，我只得到一个，因为这是预期的）。
您将需要使ID唯一并绑定每个点击事件，或者应用一个类，按类获取按钮数组，并绑定数组中的每个按钮。
如果您在每个按钮上设置了一个名为showModalButton的类，则可以使用以下命令获取引用：
var elements = document.getElementsByClassName('showModalButton');
然后迭代元素并绑定：
for(var i = 0; i < elements.length; ++i) {
elements[i].onclick = function() {
modal.style.display = "block";
}
}
答案 1 :(得分：0)
ID应始终是唯一的。
id全局属性定义必须具有的唯一标识符（ID） 在整个文件中是独一无二的其目的是识别元素 链接（使用片段标识符），脚本或样式时 （使用CSS）。
这也是你问题的根源。 document.getElementById("theid");将返回第一个元素（也是预期使用此id的唯一元素）。但是，您希望将onclick方法分配给多个按钮。
您应该考虑使用name属性。然后，您可以使用document.getElementsByName("myBtn")循环浏览所有按钮并注册您的监听器。下面的代码包含可以解释我的更改的注释。
// Get the modal
var modal = document.getElementById('myModal');
// Get all buttons that should opens the modal
var btns = document.getElementsByName("myBtn");
// Get the <span> element that closes the modal
var span = document.getElementsByClassName("close")[0];
// The iframe inside of the Modal
var modalIFrame = document.getElementById("modal-iframe");
// When the user clicks the button, open the modal
for(var i = 0; i < btns.length; i++) {
(function(i) {
var btn = btns[i];
// you should use addEventListener("click", function() {}); here
btn.onclick = function() {
// this will set the iframe url every time you press a button and add the "id" of the button that was pressed as a parameter. "id" is just the current index of the for loop for now.
modalIFrame.setAttribute("src", "map.html?id=" + i);
modal.style.display = "block";
}
})(i);
}
// When the user clicks on <span> (x), close the modal
span.onclick = function() {
modal.style.display = "none";
}
// When the user clicks anywhere outside of the modal, close it
window.onclick = function(event) {
if (event.target == modal) {
modal.style.display = "none";
}
}/*DESKTOP*/
/* The Modal (background) */
@media screen and (min-width: 801px) {
.modal {
display: none;
/* Hidden by default */
position: fixed;
/* Stay in place */
z-index: 1;
/* Sit on top */
width: 100%;
/* Full width */
height: 100%;
/* Full height */
overflow: hidden;
/* Enable scroll if needed */
background-color: rgb(0, 0, 0);
/* Fallback color */
background-color: rgba(0, 0, 0, .4);
/* Black w/ opacity */
-webkit-animation-name: fadeIn;
/* Fade in the background */
-webkit-animation-duration: 0.4s;
animation-name: fadeIn;
animation-duration: 0.4s
}
/* Modal Content */
.modal-content {
position: relative;
bottom: 0;
background-color: clear;
width: 500px;
height: 700px;
margin: 0% auto 15% auto;
/* 5% from the top, 15% from the bottom and centered */
-webkit-animation-name: slideIn;
-webkit-animation-duration: 0.4s;
animation-name: slideIn;
animation-duration: 0.4s;
border: solid 2px;
border-color: #ffc948;
overflow: hidden;
}
/* The Close Button */
.close {
color: white;
float: right;
font-size: 28px;
font-weight: bold;
}
.close:hover,
.close:focus {
color: #000;
text-decoration: none;
cursor: pointer;
}
.modal-header {
padding: 2px 16px;
background-color: #640006;
color: white;
height: 2em;
}
.modal-body {
height: 100%;
width: 100%;
overflow: hidden;
}
/* Add Animation */
@-webkit-keyframes slideIn {
from {
bottom: -300px;
opacity: 0
}
to {
bottom: 0;
opacity: 1
}
}
@keyframes slideIn {
from {
bottom: -300px;
opacity: 0
}
to {
bottom: 0;
opacity: 1
}
}
@-webkit-keyframes fadeIn {
from {
opacity: 0
}
to {
opacity: 1
}
}
@keyframes fadeIn {
from {
opacity: 0
}
to {
opacity: 1
}
}
* {
margin: 0;
padding: 0;
-webkit-box-sizing: border-box;
}
}
/*MOBILE*/
/* The Modal (background) */
@media screen and (max-width: 800px) {
.modal {
display: none;
/* Hidden by default */
position: fixed;
/* Stay in place */
z-index: 1;
/* Sit on top */
width: 100%;
/* Full width */
height: 100%;
/* Full height */
overflow: hidden;
/* Enable scroll if needed */
background-color: rgb(0, 0, 0);
/* Fallback color */
background-color: rgba(0, 0, 0, .4);
/* Black w/ opacity */
-webkit-animation-name: fadeIn;
/* Fade in the background */
-webkit-animation-duration: 0.4s;
animation-name: fadeIn;
animation-duration: 0.4s
}
/* Modal Content */
.modal-content {
position: relative;
bottom: 0;
background-color: clear;
width: 500px;
height: 700px;
margin: 0% auto 15% auto;
/* 5% from the top, 15% from the bottom and centered */
-webkit-animation-name: slideIn;
-webkit-animation-duration: 0.4s;
animation-name: slideIn;
animation-duration: 0.4s;
border: solid 2px;
border-color: #ffc948;
overflow: hidden;
}
/* The Close Button */
.close {
color: white;
float: right;
font-size: 28px;
font-weight: bold;
}
.close:hover,
.close:focus {
color: #000;
text-decoration: none;
cursor: pointer;
}
.modal-header {
padding: 2px 16px;
background-color: #640006;
color: white;
height: 2em;
}
.modal-body {
height: 100%;
width: 100%;
overflow: hidden;
}
/* Add Animation */
@-webkit-keyframes slideIn {
from {
bottom: -300px;
opacity: 0
}
to {
bottom: 0;
opacity: 1
}
}
@keyframes slideIn {
from {
bottom: -300px;
opacity: 0
}
to {
bottom: 0;
opacity: 1
}
}
@-webkit-keyframes fadeIn {
from {
opacity: 0
}
to {
opacity: 1
}
}
@keyframes fadeIn {
from {
opacity: 0
}
to {
opacity: 1
}
}
* {
margin: 0;
padding: 0;
-webkit-box-sizing: border-box;
}
}
html,
body {
height: 100%;
width: 100%;
overflow: hidden;
background-color: #810008;
}
a.menu-link {
color: #ffc948;
display: block;
text-decoration: none;
padding-top: 25px;
}
.menu-link span {
border-bottom: solid 3px #000;
border-top: double 10px #000;
display: inline-block;
height: 4px;
margin: 0 5px -3px 0;
width: 30px;
}
.menu-link:hover span {
border-color: #666;
}
.menu,
.menu > ul,
.menu > ul ul {
clear: both;
display: flex;
flex-flow: column;
margin: 0;
width: 70%;
margin-left: 15%;
margin-right: 15%;
padding-left: 15%;
}
.menu.active {
background: #640006;
border-bottom: 1px solid #64006;
border-top: 1px solid #64006;
margin: 1em 0 1em -12px;
max-height: 55em;
width: 100vw;
}
.js .menu > ul ul.active {
margin: 0;
max-height: 55em;
padding: 0;
}
.menu > ul {
padding: 0;
}
nav li {
display: inline-block;
margin: 0;
position: relative;
}
.menu li a {
color: #ffc948;
display: inline-block;
font-size: 1.04em;
letter-spacing: .05em;
line-height: 2.5em;
text-decoration: none;
}
span.has-subnav {
display: block;
font-size: 1em;
line-height: 2.5em;
position: absolute;
right: 20px;
padding: 0 0.5em;
top: 0;
}
/*NAV MENU CSS MOBILE */
@media screen and (max-width: 800px) {
.menu,
.menu > ul ul {
margin: 0;
max-height: 0;
overflow: hidden;
}
.menu li a {
border-bottom: 1px solid #ffc948;
display: block;
padding-left: 15px;
}
.menu li li a {
padding-left: 50px;
}
.menu li:last-child a {
border: none;
}
.menu li li:last-child a {
border-bottom: 1px solid #ffc948;
}
.menu li:hover {
background: #640006;
}
}
.menu li a:hover {
background: #ffc948;
color: black;
}
/*NAV MENU CSS DESKTOP*/
@media screen and (min-width: 801px) {
nav {
border-bottom: 1px solid #ffc948;
}
a.menu-link {
display: none;
}
.js .menu,
.js .menu > ul ul {
max-height: none;
overflow: visible;
}
.js .menu > ul li:hover > ul {
display: flex;
}
.menu ul {
display: flex;
flex-flow: row;
height: 44px;
justify-content: space-between;
margin: 0;
padding: 0;
}
.menu span.has-subnav {
display: none;
}
.menu li a:hover {
color: rgb(0, 0, 0);
}
.menu li li a:hover {
background: rgba(0, 0, 0, 0.1);
color: #fff;
}
.menu ul ul {
background: #640006;
border: solid 1px rgba(0, 0, 0, 1);
border-radius: 2px 2px 5px 5px;
border-top: solid 2px transparent;
display: none;
height: auto;
overflow: hidden;
padding: 0;
position: absolute;
text-align: left;
top: 43px;
width: 150px;
z-index: 999;
}
.chrome .js .menu > ul ul {
top: 43px;
}
.menu ul ul.wide {
width: 300px;
}
.menu ul ul li {
border-bottom: solid 1px rgba(0, 0, 0, 0.5);
display: inline-block;
position: relative;
}
.menu > ul ul li:last-child {
border-bottom: none;
}
.menu ul ul li a {
display: block;
padding-left: 10px;
}
}
a {
text-decoration: none;
color: #ffc948;
}
ul,
li {
list-style: none;
vertical-align: middle;
}
ul.list {
padding-left: 20px;
}
.alphalist {
position: fixed;
right: 0;
font-size: 12px;
text-align: center;
display: inline-block;
z-index: 2;
top: auto;
height: 100%;
}
.list li {
border-bottom: 1px solid #ffc948;
line-height: 44px;
height: 44px;
}
.list .divider {
font-size: 20px;
font-weight: bold;
background: #fafafa;
box-shadow: -60px 0 0 #fafafa;
line-height: 28px;
height: 28px;
margin-top: -1px;
position: -webkit-sticky;
top: 44px;
}
h1 {
color: #ffc948;
font-size: 30px;
font-family: "Baskerville Old Face";
letter-spacing: 4px;
text-align: center;
line-height: 30px;
}
h2 {
color: #ffc948;
font-size: 20px;
font-family: "Baskerville Old Face";
letter-spacing: 4px;
text-align: center;
line-height: auto;
margin: auto;
}
h3 {
line-height: 44px;
height: 44px;
color: #ffc948;
width: 100%;
position: absolute;
text-align: center;
z-index: 10;
}
#scrolling {
padding-top: 44px;
padding-right: auto;
overflow: scroll;
-webkit-overflow-scrolling: touch;
height: 100%;
width: 100%;
position: absolute;
z-index: 0;
}
@media (-webkit-min-device-pixel-ratio: 2) {
.list .divider {
top: 0;
}
}
.modal-button {
background-color: #fafafa;
border: none;
color: black;
padding: 8px 16px;
text-align: center;
text-decoration: none;
display: inline-block;
font-size: inherit;
margin: 4px 2%;
float: right;
cursor: pointer;
}
.button {
background-color: #fafafa;
border: none;
color: black;
padding: 8px 16px;
text-align: center;
text-decoration: none;
display: inline-block;
font-size: inherit;
margin: 4px 2%;
float: right;
cursor: pointer;
}<!-- Changed id="myBtn" to name="myBtn" -->
<button name="myBtn">Show on Map</button>
<!-- The Modal -->
<div id="myModal" class="modal">
<!-- Modal content -->
<div class="modal-content">
<div class="modal-header">
<span class="close">×</span>
<h2>Career Fair Map</h2>
</div>
<div class="modal-body">
<iframe id="modal-iframe" src="map.html" width="500px" height="700px">
</iframe>
</div>
</div>
</div>
<div id="scrolling">
<ul class="list">
<li class="divider" id="a">A</li>
<li><a href="#">Amelia Webster</a>
<button class="button" onclick="alert('## has been added to favorites.')">Favorite</button>
<!-- Changed id="myBtn" to name="myBtn" -->
<button class="button" name="myBtn">Show on Map</button>
<li><a href="#">Andrew WifKinson</a>
</li>
<li><a href="#">Archibald Carrington</a>
<!-- Changed id="myBtn" to name="myBtn" -->
<button class="modal-button" name="myBtn">Show on Map</button>
</li>
<li><a href="#">Ariana Clapton</a>
</li>
<li><a href="#">Ashley Carter</a>
</li>
<li class="divider" id="b">B</li>
<li><a href="#">Barney Mercer</a>
</li>
<li><a href="#">Barry Goodman</a>
</li>
<li><a href="#">Brenda Brown</a>
</li>
<li><a href="#">Brooke Creighton</a>
</li>
<li class="divider" id="c">C</li>
<li><a href="#">Camilla Kapinksy</a>
</li>
<li><a href="#">Caroline Miller</a>
</li>
<li><a href="#">Charlotte Gardner</a>
</li>
<li><a href="#">Cynthia Monroe</a>
</li>
<li class="divider" id="e">E</li>
<li><a href="#">Elizabeth Abramson</a>
</li>
<li><a href="#">Elizabeth Cook</a>
</li>
<li><a href="#">Ernie Carter</a>
</li>
<li><a href="#">Evelyn Nash</a>
</li>
<li class="divider" id="f">F</li>
<li><a href="#">Fyodor Dostoevsky</a>
</li>
</ul>
</div>