body{
    background: -webkit-repeating-linear-gradient(-45deg, #71b7e6, #69a6ce, #b98acc, #ee8176, #b98acc, #69a6ce, #9b59b6);
    height: 100vh;
    background-size: 400%;
}

.error-page{
    position: absolute;
    top: 10%;
    left: 17%;
    right: 17%;
    bottom: 10%;
    display: flex;
    align-items: center;
    justify-content: center;
    background: #fff;
    box-shadow: 0px 5px 10px rgba(0,0,0,0.1);
}

.error-page .content{
    max-width: 600px;
    text-align: center;
}

.content h1{
    font-size: 18vw;
    line-height: 1em;
    position: relative;
}

.content h1:after{
    position: absolute;
    content: attr(data-text);
    top: 0;
    left: 0;
    right: 0;
    background: -webkit-repeating-linear-gradient(-45deg, #71b7e6, #69a6ce, #b98acc, #ee8176, #b98acc, #69a6ce, #9b59b6);
    background-size: 400%;
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    text-shadow: 1px 1px 2px rgba(255, 255,255, 0.25);
    animation: animate 10s ease-in-out infinite;
}

@keyframes animate {
    0%{
        background-position: 0 0;
    }
    25%{
        background-position: 100% 0;
    }
    50%{
        background-position: 100% 100%;
    }
    75%{
        background-position: 0 100%;
    }
    100%{
        background-position: 0 0;
    }
}

.content h4{
    margin-bottom: 20px;
    text-transform: uppercase;
    color: #000;
    max-width: 600px;
    font-size: 2em;
    position: relative;
}

.content h4:after{
    position: absolute;
    content: attr(data-text);
    top: 0;
    left: 0;
    right: 0;
    text-shadow: 1px 1px 2px rgba(255, 255, 255, 0.4);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
}

.content p{
    font-size: 1.2em;
    color: #0d0d0d;
}

.content .btns{
    margin: 25px 0;
    display: inline-flex;
}

.content .btns a{
    display: inline-block;
    margin: 0 10px;
    text-decoration: none;
    border: 2px solid #69a6ce;
    color: #69a6ce;
    font-weight: 500;
    padding: 10px 25px;
    border-radius: 25px;
    text-transform: uppercase;
    transition: all 0.3s ease;
}

.content .btns a:hover{
    color: #fff;
    background: #69a6ce;
}