style.css

* {
    box-sizing: border-box;
}
/* The container */
.container {
    display: block;
    position: relative;
    margin-bottom: 12px;
    cursor: pointer;
    -webkit-user-select: none;
    -moz-user-select: none;
    -ms-user-select: none;
    user-select: none;
}

/* Hide the browser's default checkbox */
.container input {
    font-size: 24px;
    opacity: 0;
    cursor: pointer;
}

/* Create a custom checkbox */
.checkmark {
    position: absolute;
    top: 0;
    left: 0;
    height: 24px;
    width: 24px;
    border-radius: 2px;
    background-color: #eee;
}

/* On mouse-over, add a grey background color */
.container:hover input ~ .checkmark {
    background-color: #ccc;
}

/* When the checkbox is checked, add a blue background */
.container input:checked ~ .checkmark {
    background-color: #2196F3;
}

/* Create the checkmark/indicator (hidden when not checked) */
.checkmark:after {
    content: "";
    position: absolute;
    display: none;
}

/* Show the checkmark when checked */
.container input:checked ~ .checkmark:after {
    display: block;
}

/* Style the checkmark/indicator */
.container .checkmark:after {
    left: 9px;
    top: 5px;
    width: 5px;
    height: 10px;
    border: solid white;
    border-width: 0 3px 3px 0;
    -webkit-transform: rotate(45deg);
    -ms-transform: rotate(45deg);
    transform: rotate(45deg);
}

.BoxInFrame {
    width: 620px;
    height: 102px;
    background-color: #FFF2DC;
    display: flex;
    margin: 10px auto;
    align-items: center;
    padding: 30px;
}

.TopInfo {
    width: 1024px;
    height: 76px;
    background-color: #4A90E2;
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 0px 180px;
    margin: 0px auto;
}

.line {
    border-bottom:#00408B 5px solid;
    color: #fff;
    padding: 25px;
}

.todo {
    display: inline-block;
    margin: 0px 0px 0px 15px;
}

.todo h2 {
    font-size: 24px;
    line-height: 28px;
    margin-bottom: 10px;
}

.todo i {
    margin: 0px 5px;
}

.allBox {
    width: 40%;
    margin: 0px auto;
}

.allBox .add {
    width: 620px;
    height: 35px;
    margin: 10px auto;
    border-radius:5px;  
}

.editor {
    margin-left: auto; 
}

.editor i {
    margin: 5px 15px;
    font-size:20px;
}

.todototal{
    margin: 10px 20px;
    text-align: left;
    color:#C8C8C8;
    font-size: 24px;
    line-height: 28px;
}