body {
    background: #efefef;
    font-family: 'Open Sans', "Helvetica Neue", sans-serif;
    font-size: 14px;
    margin: 0px;
}

h1, h2, h3, h4, h5 {
    font-weight: 500;
}

h3 {
    font-size: 24px;
}

h5 {
    font-size: 14px;
}

p, span, div, p, a {
    color: #444;
}

svg {
    fill: #444;
}

a {
    text-decoration: none;
}
.wrapper-404 {
    width: 100%;
    height: 100%;
    background-color: #EFEFEF;
}
    .wrapper-404 .page-404 {
        margin: auto;
        width: 300px;
    }
        .wrapper-404 .page-404 .img-404 {
            width: 280px;
            margin-top: 100px;
        }

        .wrapper-404 .page-404 .oops-404 {
            color: #3ca7f1;
            font-size: 34px;
            margin: 0 0 10px;
            font-family: sans-serif;
            line-height: 48.5714px;
        }

        .wrapper-404 .page-404 .msg-404 {
            font-size: 15px;
            color: #777;
            margin: 0 0 10px;
            font-family: sans-serif;
            line-height: 21.4286px;
        }

        .wrapper-404 .page-404 .btn-back-to-home {
            font-weight: 400;
            margin-top: 30px;
            width: 150px;
            border: none;
            outline: none;
            font-family: sans-serif;
            line-height: 20px;
            border-radius: 25px;
            padding: 6px 12px;
            background-color: #ffc000;
            color: #fff;
            font-size: 14px;
            min-width: 100px;
            min-height: 34px;
            cursor: pointer;
        }