Верстка:
<div class="wrapper"> <div class="header"> <h1>Список дел</h1> <input type="text" placeholder="Введите новое дело..." id="toDoEl"> <span class="addBtn" onclick="newElement()">Добавить</span> </div> <ul id="list"> </ul> </div>
Стили CSS:
* {
box-sizing: border-box;
}
.wrapper {width: 920px; margin: 0 auto}
ul {
margin: 0;
padding: 0;
list-style: none;
}
ul li {
cursor: pointer;
position: relative;
padding: 12px 8px 12px 40px;
background: #eee;
font-size: 18px;
transition: 0.2s;
-webkit-user-select: none;
-moz-user-select: none;
-ms-user-select: none;
user-select: none;
}
ul li:nth-child(odd) {
background: #f9f9f9;
}
ul li:hover {
background: #ddd;
}
ul li.checked {
background: #888;
color: #fff;
text-decoration: line-through;
}
ul li.checked::before {
content: '';
position: absolute;
border-color: #fff;
border-style: solid;
border-width: 0 2px 2px 0;
top: 10px;
left: 16px;
transform: rotate(45deg);
height: 15px;
width: 7px;
}
.close {
position: absolute;
right: 0;
top: 0;
padding: 12px 16px 12px 16px;
}
.close:hover {
background-color: #f44336;
color: white;
}
.header {
background-color: #000;
padding: 30px 40px;
color: white;
text-align: center;
}
.header:after {
content: "";
display: table;
clear: both;
}
input {
border: none;
width: 75%;
padding: 10px;
float: left;
font-size: 16px;
}
.addBtn {
padding: 10px;
width: 25%;
background: #d9d9d9;
color: #555;
float: left;
text-align: center;
font-size: 16px;
cursor: pointer;
transition: 0.3s;
}
.addBtn:hover {
background-color: #bbb;
}
Скрипт:
var list = document.querySelector('ul');
list.addEventListener('click', function (ev) {
if(ev.target.tagName === "LI") {
ev.target.classList.toggle('checked');
} else if(ev.target.tagName === "SPAN") {
var div = ev.target.parentNode;
div.remove();
}
}, false);
function newElement() {
var li = document.createElement('li');
var inputValue = document.getElementById('toDoEl').value;
var t = document.createTextNode(inputValue);
li.appendChild(t);
if(inputValue == "") {
alert("Введите ваше дело!");
} else {
document.getElementById('list').appendChild(li);
}
document.getElementById('toDoEl').value = "";
var span = document.createElement('SPAN');
var txt = document.createTextNode("X");
span.className = "close";
span.appendChild(txt);
li.appendChild(span);
}
Подробнее в формате видео: