#oopss {
    background: linear-gradient(-45deg, #fff300, #efe400);
    position: fixed;
    left: 0px;
    top: 0;
    width: 100%;
    height: 100%;
    line-height: 1.5em;
    z-index: 9999;
}

    #oopss #error-text {
        font-size: 40px;
        display: flex;
        flex-direction: column;
        align-items: center;
        font-family: "Shabnam", Tahoma, sans-serif;
        color: #000;
        direction: rtl;
    }

        #oopss #error-text img {
            margin: 85px auto 20px;
            height: 342px;
        }

        #oopss #error-text span {
            position: relative;
            font-size: 3.3em;
            font-weight: 900;
            margin-bottom: 50px;
        }

        #oopss #error-text p.p-a {
            font-size: 19px;
            margin: 30px 0 15px 0;
        }

        #oopss #error-text p.p-b {
            font-size: 15px;
        }

        #oopss #error-text .back {
            background: #fff;
            color: #000;
            font-size: 30px;
            text-decoration: none;
            margin: 2em auto 0;
            padding: 0.7em 2em;
            border-radius: 500px;
            box-shadow: 0 20px 70px 4px rgba(0, 0, 0, 0.1), inset 7px 33px 0 0px #fff300;
            font-weight: 900;
            transition: all 300ms ease;
        }

            #oopss #error-text .back:hover {
                -webkit-transform: translateY(-13px);
                transform: translateY(-13px);
                box-shadow: 0 35px 90px 4px rgba(0, 0, 0, 0.3), inset 0px 0 0 3px #000;
            }

@font-face {
    font-family: Shabnam;
    src: url("https://cdn.rawgit.com/ahmedhosna95/upload/ba6564f8/fonts/Shabnam/Shabnam-Bold.eot");
    src: url("https://cdn.rawgit.com/ahmedhosna95/upload/ba6564f8/fonts/Shabnam/Shabnam-Bold.eot?#iefix") format("embedded-opentype"), url("https://cdn.rawgit.com/ahmedhosna95/upload/ba6564f8/fonts/Shabnam/Shabnam-Bold.woff") format("woff"), url("https://cdn.rawgit.com/ahmedhosna95/upload/ba6564f8/fonts/Shabnam/Shabnam-Bold.woff2") format("woff2"), url("https://cdn.rawgit.com/ahmedhosna95/upload/ba6564f8/fonts/Shabnam/Shabnam-Bold.ttf") format("truetype");
    font-weight: bold;
}

@font-face {
    font-family: Shabnam;
    src: url("https://cdn.rawgit.com/ahmedhosna95/upload/ba6564f8/fonts/Shabnam/Shabnam.eot");
    src: url("https://cdn.rawgit.com/ahmedhosna95/upload/ba6564f8/fonts/Shabnam/Shabnam.eot?#iefix") format("embedded-opentype"), url("https://cdn.rawgit.com/ahmedhosna95/upload/ba6564f8/fonts/Shabnam/Shabnam.woff") format("woff"), url("https://cdn.rawgit.com/ahmedhosna95/upload/ba6564f8/fonts/Shabnam/Shabnam.woff2") format("woff2"), url("https://cdn.rawgit.com/ahmedhosna95/upload/ba6564f8/fonts/Shabnam/Shabnam.ttf") format("truetype");
    font-weight: normal;
}