.error-container {
    text-align: center;
    font-size: 180px;
    font-family: 'Catamaran', sans-serif;
    font-weight: 800;
}
.error-container > span {
    display: inline-block;
    line-height: 0.7;
    position: relative;
    color: #FFB485;
}
.error-container > span {
    display: inline-block;
    position: relative;
    vertical-align: middle;
}
.error-container > span:nth-of-type(1) {
    color: #D1F2A5;
    animation: colordancing 4s infinite;
}
.error-container > span:nth-of-type(3) {
    color: #F56991;
    animation: colordancing2 4s infinite;
}
.error-container > span:nth-of-type(2) {
    width: 120px;
    height: 120px;
    border-radius: 999px;
}
.error-container > span:nth-of-type(2):before,
.error-container > span:nth-of-type(2):after {
    border-radius: 0%;
    content:"";
    position: absolute;
    top: 0; left: 0;
    width: inherit; height: inherit;
    border-radius: 999px;
    box-shadow: inset 30px 0 0 rgba(209, 242, 165, 0.4),
    inset 0 30px 0 rgba(239, 250, 180, 0.4),
    inset -30px 0 0 rgba(255, 196, 140, 0.4),
    inset 0 -30px 0 rgba(245, 105, 145, 0.4);
    animation: shadowsdancing 4s infinite;
}
.error-container > span:nth-of-type(2):before {
    -webkit-transform: rotate(45deg);
    -moz-transform: rotate(45deg);
    transform: rotate(45deg);
}

.screen-reader-text {
    position: absolute;
    top: -9999em;
    left: -9999em;
}
@keyframes shadowsdancing {
    0% {
        box-shadow: inset 30px 0 0 rgba(209, 242, 165, 0.4),
        inset 0 30px 0 rgba(239, 250, 180, 0.4),
        inset -30px 0 0 rgba(255, 196, 140, 0.4),
        inset 0 -30px 0 rgba(245, 105, 145, 0.4);
    }
    25% {
        box-shadow: inset 30px 0 0 rgba(245, 105, 145, 0.4),
        inset 0 30px 0 rgba(209, 242, 165, 0.4),
        inset -30px 0 0 rgba(239, 250, 180, 0.4),
        inset 0 -30px 0 rgba(255, 196, 140, 0.4);
    }
    50% {
        box-shadow: inset 30px 0 0 rgba(255, 196, 140, 0.4),
        inset 0 30px 0 rgba(245, 105, 145, 0.4),
        inset -30px 0 0 rgba(209, 242, 165, 0.4),
        inset 0 -30px 0 rgba(239, 250, 180, 0.4);
    }
    75% {
        box-shadow: inset 30px 0 0 rgba(239, 250, 180, 0.4),
        inset 0 30px 0 rgba(255, 196, 140, 0.4),
        inset -30px 0 0 rgba(245, 105, 145, 0.4),
        inset 0 -30px 0 rgba(209, 242, 165, 0.4);
    }
    100% {
        box-shadow: inset 30px 0 0 rgba(209, 242, 165, 0.4),
        inset 0 30px 0 rgba(239, 250, 180, 0.4),
        inset -30px 0 0 rgba(255, 196, 140, 0.4),
        inset 0 -30px 0 rgba(245, 105, 145, 0.4);
    }
}
@keyframes colordancing {
    0% {
        color: #D1F2A5;
    }
    25% {
        color: #F56991;
    }
    50% {
        color: #FFC48C;
    }
    75% {
        color: #EFFAB4;
    }
    100% {
        color: rgba(77, 176, 81, 0.73);
    }
}
@keyframes colordancing2 {
    0% {
        color: #FFC48C;
    }
    25% {
        color: #EFFAB4;
    }
    50% {
        color: #4db051;
    }
    75% {
        color: #F56991;
    }
    100% {
        color: #FFC48C;
    }
}

/* demo stuff */
* {
    -webkit-box-sizing: border-box;
    -moz-box-sizing: border-box;
    box-sizing: border-box;
}

html, button, input, select, textarea {
    font-family: 'Montserrat', Helvetica, sans-serif;
    color: #92a4ad;
}
h1 {
    text-align: center;
    margin: 30px 15px;
}
.zoom-area {
    max-width: 490px;
    margin: 30px auto 30px;
    font-size: 19px;
    text-align: center;
}
.link-container {
    text-align: center;
}
a.more-link {
    text-transform: uppercase;
    font-size: 13px;
    background-color: #92a4ad;
    padding: 10px 15px;
    border-radius: 0;
    color: #416475;
    display: inline-block;
    margin-right: 5px;
    margin-bottom: 5px;
    line-height: 1.5;
    text-decoration: none;
    margin-top: 50px;
    letter-spacing: 1px;
}
.btn_chuowu {
    display: inline-block;
    margin:5px 0;
    padding: 0 15px;
    line-height: 45px;
    border:none;
    background-color:#4CAF50;
    color:#fff;
    font-size:18px;
    border-radius:6px;
    outline:none;
    cursor:pointer;
    transition:.3s linear;
}
.btn_chuowu:hover {
    transform:rotateX(15deg);
    box-shadow:0 15px 15px rgba(77, 176, 81, 0.73);
    color: #fff;
}
@media (max-width: 768px){
    .error-container {
        font-size: 92px;
    }
    .error-container > span:nth-of-type(2) {
        width: 68px;
        height: 68px;
    }
}
.btn_link{
    text-align: center;
    margin-bottom: 40px;
}