index.css

/* Copyright 2013 The Chromium Authors. All rights reserved.
 * Use of this source code is governed by a BSD-style license that can be
 * found in the LICENSE file. */

#bigBox {
    display: flex;
    flex-direction: column;
    width: 50%;
}

#policyDisplay {
    text-align: center;
}

#epsilonDisplay {
    text-align: center;
    font-size: 2rem;
}

#slider-1,
#warpCount {
    margin: auto;
    text-align: center;
    width: 30%;
    margin-bottom: 10px;
}

html,
body {
    font-family: 'Montserrat', sans-serif;
    padding: 0;
    margin: 0;
    width: 100%;
}

.icon {
    -webkit-user-select: none;
    user-select: none;
    display: inline-block;
}

.icon-offline {
    content: -webkit-image-set( url(assets/default_100_percent/100-error-offline.png) 1x, url(assets/default_200_percent/200-error-offline.png) 2x);
    position: relative;
}

.hidden {
    display: none;
}


/* Offline page */

.offline .interstitial-wrapper {
    color: #2b2b2b;
    font-size: 1em;
    line-height: 1.55;
    margin: 0 auto;
    max-width: 600px;
    padding-top: 100px;
    width: 100%;
}

.offline .runner-container {
    height: 150px;
    max-width: 600px;
    overflow: hidden;
    position: absolute;
    top: 35px;
    width: 44px;
}

.offline .runner-canvas {
    height: 150px;
    max-width: 600px;
    opacity: 1;
    overflow: hidden;
    position: absolute;
    top: 0;
    z-index: 2;
}

.offline .controller {
    background: rgba(247, 247, 247, .1);
    height: 100vh;
    left: 0;
    position: absolute;
    top: 0;
    width: 100vw;
    z-index: 1;
}

#offline-resources {
    display: none;
}

@media (max-width: 420px) {
    .suggested-left>#control-buttons,
    .suggested-right>#control-buttons {
        float: none;
    }
    .snackbar {
        left: 0;
        bottom: 0;
        width: 100%;
        border-radius: 0;
    }
}

@media (max-height: 350px) {
    h1 {
        margin: 0 0 15px;
    }
    .icon-offline {
        margin: 0 0 10px;
    }
    .interstitial-wrapper {
        margin-top: 5%;
    }
    .nav-wrapper {
        margin-top: 30px;
    }
}

@media (min-width: 600px) and (max-width: 736px) and (orientation: landscape) {
    .offline .interstitial-wrapper {
        margin-left: 0;
        margin-right: 0;
    }
}

@media (min-width: 420px) and (max-width: 736px) and (min-height: 240px) and (max-height: 420px) and (orientation:landscape) {
    .interstitial-wrapper {
        margin-bottom: 100px;
    }
}

@media (min-height: 240px) and (orientation: landscape) {
    .offline .interstitial-wrapper {
        margin-bottom: 90px;
    }
    .icon-offline {
        margin-bottom: 20px;
    }
}

@media (max-height: 320px) and (orientation: landscape) {
    .icon-offline {
        margin-bottom: 0;
    }
    .offline .runner-container {
        top: 10px;
    }
}

@media (max-width: 240px) {
    .interstitial-wrapper {
        overflow: inherit;
        padding: 0 8px;
    }
}