* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

input {
    outline: none;
    font-size: 20px;
    padding: 1em;
}

button {
    outline: none;
    cursor: pointer;
}

body, html {
    background: #40285e;
    height: 100%;
    font-size: 20px;
    font-family: sans-serif;
    color: #333;
    padding: 2em;
}

header {
    display: flex;
    align-items: center;
    justify-content: flex-end;
    height: 2em;
    border-bottom: 1px solid #ccc;
}

header button {
    border: none;
    padding: .5em 1em;
    margin: .2em;
    background: #e3e3e3;
    border-radius: 5px;
    color: #999;
    cursor: pointer;
    transition: .3s;
}

header button:hover {
    color: #222;
}

.empty {
    text-align: center;
    height: 5em;
    line-height: 5em;
}

.filter.active {
    background: #00bcd4;
    color: #fff;
}

.app {
    padding: 0 0 2em;
    border-radius: 10px;
    background: #f7f7f7;
    box-shadow: 0 0 65px 1px rgba(0, 0, 0, 0.57);
    width: 600px;
    margin: auto;
}

#todo {
    height: 3em;
    border: 0;
    width: 100%;
    background: #40285e;
    color: #ccc;
}

#todos {
    min-height: 5em;
}

#todos .item {
    display: flex;
    align-items: center;
    justify-content: space-between;
    border-bottom: 1px solid #ddd;
    border-top: 1px solid #fefefe;
    height: 3em;
    transition: .3s;
}

#todos .item:hover {
    background: #eee;
}

#todos .item input {
    border: 0;
    height: 3em;
    width: 100%;
    flex: 1;
    border-bottom: 1px solid #00bcd4;
    z-index: 10;
    position: relative;
}

#todos .item .delete {
    border: none;
    background: none;
    margin: 0 1em;
    font-size: 26px;
    color: #999;
    display: none;
}

#todos .item .delete:hover {
    color: #ff5722;
}

#todos .item:hover .delete {
    display: block;
}

.btnToggle {
    padding: 0 1em;
    border-right: 1px solid #ccc;
    height: 3em;
    line-height: 3em;
}

.btnToggle i {
    display: inline-block;
    height: 1em;
    width: 1em;
    border: 1px solid #ccc;
    border-radius: 50%;
    cursor: pointer;
}

.btnToggle.active0 i {
    background: #8bc34a;
    border: 1px solid #7aae3d;
}

.item-description-wrapper {
    flex: 1;
}

.item-description {
    margin-left: 1em;
    cursor: pointer;
}

.status0 .item-description {
    text-decoration: line-through;
    color: #ccc;
}

#todos li.status0 {}