body {
}

.header{
    background-color:#EFEFEF;
    border-bottom:solid 1px gray;
    padding:0 5px;
}

.user{
    background-color:#000;
    color:#fff;
    padding:0 5px;
}

.menu{
    padding:0 5px;
    background-color:#fff;
    border-bottom:solid 1px #000;
}

    .menu a, .menu a:link, .menu a:active, .menu a:visited {
        text-decoration: none;
        cursor: pointer;
        display: inline-block;
        border-right:solid 1px #000;
        padding: 4px;
        color: #000;
        background-color: #EFEFEF;
    }

        .menu a:first-child {
            border-left: solid 1px #000;
        }

        .menu a:hover{
            background-color:#fffba7;
        }

.content{
    margin-top:15px;
}

.bg-light {
    background-color: #ececec;
}

.p-3 {
    padding: 1rem;
}

.mb-15 {
    margin-bottom: 15px;
}

.mb-0 {
    margin-bottom: 0;
}

.checkbox input[type="checkbox"] {
    margin-left: 0;
}