*,
*::before,
*::after {
    box-sizing: border-box;
    -moz-box-sizing: border-box;
    -webkit-box-sizing: border-box;
}

html {
    height: 100%;
}

body {
    font-family: roboto;
    background: #EECDA3;
    /* fallback for old browsers */
    background: -webkit-linear-gradient(120deg, #f093fb 0%, #f5576c 100%);
    /* Chrome 10-25, Safari 5.1-6 */
    background: linear-gradient(120deg, #f093fb 0%, #f5576c 100%);
    /* W3C, IE 10+/ Edge, Firefox 16+, Chrome 26+, Opera 12+, Safari 7+ */

}

h1 {
    color: white;
    background: #2980b9;
    margin: 0;
    padding: 10px 20px;
    font-weight: normal;
    font-size: 24px;
    text-transform: uppercase;
}

.fa-plus,
.fa-minus {
    float: right;
}

#container {
    width: 360px;
    background: #f7f7f7;
    margin: 100px auto;
    box-shadow: 5px 20px 20px 0px rgba(0, 0, 0, 0.2);
    max-height: 500px;
    overflow-y: auto;
}

ul {
    list-style: none;
    margin: 0;
    padding: 0;
    cursor: pointer;
}

li {
    background: #fff;
    height: 40px;
    line-height: 40px;
    color: #666;
    white-space: nowrap;
    text-overflow: ellipsis;
    overflow: hidden;
}

li:nth-child(2n) {
    background: #f7f7f7;
}

li span {
    background: #e74c3c;
    height: 40px;
    margin-right: 20px;
    display: inline-block;
    text-align: center;
    width: 0px;
    color: white;
    opacity: 0;
}

li:hover span {
    width: 40px;
    opacity: 1;
    transition: 0.3s linear;
}

input[type='text'] {
    width: 100%;
    font-size: 18px;
    padding: 13px 13px 13px 20px;
    background: #f7f7f7;
    color: #2980b9;
    border: 0;
    margin:0;
    outline: none;
}

input[type='text']:focus {
    border: 2px solid #2980b9;
    background: #fff;
    outline: none;
}

.strikethrough-item {
    text-decoration: line-through;
    color: gray;
}