@import url('https://fonts.googleapis.com/css?family=Montserrat:300,400,500&display=swap');
* {
    box-sizing: border-box;
}
html,
body {
    height: 100%;
    padding: 0;
    margin: 0;
}
body {
    font-family: 'Montserrat', sans-serif;
    text-align: center;
}
.flex {
    display: flex;
    height: 100%;
}
.theme__dark {
    background-color: #36464e;
    color: #fff;
}

header {
    padding: 15px 0;
    position: absolute;
    width: 100%;
    border-bottom: 3px solid #41a046;
}
.header__logo {
    height: 32px;
}

.panel {
    margin: auto;
    align-self: center;
    justify-self: center;
    padding: 20px;
}
.panel img {
    max-width: 90%;
}
.error__title {
    color: #f26b46;
    text-transform: uppercase;
    text-align: center;
    width: 100%;
    line-height: normal;
    padding-bottom: 10px;
    font-weight: 300;
    font-size: 1.5rem;
    margin: 0;
}
@media (min-width: 576px) {
    .error__title {
        font-size: 47px;
    }
}