* {
    box-sizing: border-box;
}

.nav {
    height: 50px;
    width: 100%;
/*    background-color: #ecf8fe;*/
    background-color: white;
    position: fixed;
    top: 3px;
    z-index: 5;
    box-shadow: 0 1px 6px 1px #cecece;
}

.nav > .nav-header {
    display: inline;
}

.nav > .nav-header > .nav-title {
    display: inline-block;
    font-size: 28px;
    color: #000;
    padding: 10px 10px 10px 10px;
    text-shadow: 0px 2px 3px #555;
}

.nav > .nav-btn {
    display: none;
}

.nav > .nav-links {
    display: inline;
    float: right;
    font-size: 20px;
    font-weight: 700;
}

.nav > .nav-links > a {
    display: inline-block;
    padding: 13px 10px 13px 10px;
    text-decoration: none;
    color: #000;
}

.nav > .nav-links > a:hover {
    background-color: #ccc;
}

.nav > #nav-check {
    display: none;
}

@media (min-device-width:0px) and (max-device-width:950px){
    .nav {
        height: 100px;
        width: 100%;
       background-color: white;
        position: fixed;
        top: 3px;
        z-index: 5;
        box-shadow: 0 1px 6px 1px #cecece;
    }

    .nav > .nav-header > .nav-title {
        display: inline-block;
        font-size: 56px;
        color: #000;
        padding: 20px 20px 20px 20px;
        text-shadow: 0px 2px 3px #555;
    }
    .nav > .nav-btn {
        display: inline-block;
        position: absolute;
        right: 0px;
        top: 0px;
    }
    .nav > .nav-btn > label {
        display: inline-block;
        width: 100px;
        height: 100px;
        padding: 26px;
    }
    .nav > .nav-btn > label:hover {
        background-color: #ccc;
    }
    .nav > .nav-btn > label > span {
        display: block;
        width: 50px;
        height: 20px;
        border-top: 2px solid #000;
    }
    .nav > .nav-links {
        position: absolute;
        display: block;
        width: 100%;
        background-color: #ecf8fe;
        height: 0px;
        transition: all 0.3s ease-in;
        overflow-y: hidden;
        top: 100px;
        left: 0px;
    }
    .nav > .nav-links > a {
        display: block;
        width: 100%;
        font-size: 2em;
        text-align: center;
    }
    .nav > #nav-check:not(:checked) + .nav-links {
        height: 0px;
    }
    .nav > #nav-check:checked + .nav-links {
        height: calc(100vh - 50px);
        overflow-y: auto;
    }

    @media (min-width:0px) and (max-width:950px){
        .nav {
            height: 100px;
            width: 100%;
            background-color: #ecf8fe;
            position: fixed;
            top: 3px;
            z-index: 5;
            box-shadow: 0 1px 6px 1px #cecece;
        }

        .nav > .nav-header > .nav-title {
            display: inline-block;
            font-size: 56px;
            color: #000;
            padding: 20px 20px 20px 20px;
            text-shadow: 0px 2px 3px #555;
        }
        .nav > .nav-btn {
            display: inline-block;
            position: absolute;
            right: 0px;
            top: 0px;
        }
        .nav > .nav-btn > label {
            display: inline-block;
            width: 100px;
            height: 100px;
            padding: 26px;
        }
        .nav > .nav-btn > label:hover {
            background-color: #ccc;
        }
        .nav > .nav-btn > label > span {
            display: block;
            width: 50px;
            height: 20px;
            border-top: 2px solid #000;
        }
        .nav > .nav-links {
            position: absolute;
            display: block;
            width: 100%;
            background-color: #ecf8fe;
            height: 0px;
            transition: all 0.3s ease-in;
            overflow-y: hidden;
            top: 100px;
            left: 0px;
        }
        .nav > .nav-links > a {
            display: block;
            width: 100%;
            font-size: 2em;
            text-align: center;
        }
        .nav > #nav-check:not(:checked) + .nav-links {
            height: 0px;
        }
        .nav > #nav-check:checked + .nav-links {
            height: calc(100vh - 50px);
            overflow-y: auto;
        }

    }