404 CSS

* {
    padding: 0;
    margin: 0;
    font-size: 10pt;
    font-family: Verdana,Helvetica,Arial,sans-serif;
    color: #24292e;
    word-wrap: break-word;
    box-sizing: border-box;
}

html,body {
    background-image: url("https://play.pokemonshowdown.com/fx/client-bg-charizards.jpg");
    background-color: #344b6c;
    position: relative;
    min-width: 100%;
    min-height: 100%;
}

header {
    min-width: 100vw;
    min-height: 50px;
    position: relative;
    background: url("https://play.pokemonshowdown.com/fx/client-topbar-bg.png") repeat-x left top scroll;
}

.maintabbarbottom {
    height: 6px;
    min-width: 100vw;
    background: #f8f8f8;
    border: none;
    border-top: 1px solid #aaa;
    border-bottom: 1px solid #aaa;
    box-shadow: 0 1px 2px rgba(0,0,0,.2);
    -webkit-box-shadow: 0 1px 2px rgba(0,0,0,.2);
    -moz-box-shadow: 0 1px 2px rgba(0,0,0,.2);
}

.button {
    outline: none;
    cursor: pointer;
    text-align: center;
    text-decoration: none;
    border-radius: 5px;
    -webkit-box-shadow: 0 1px 2px rgba(0,0,0,.2), inset 0 -1px 2px #fff;
    -moz-box-shadow: 0 1px 2px rgba(0,0,0,.2),inset 0 -1px 2px #fff;
    box-shadow: 0 1px 2px rgba(0,0,0,.2), inset 0 -1px 2px #fff;
    border-radius: 5px;
    font-family: Verdana,Helvetica,Arial,sans-serif;
    display: inline-block;
    color: #222;
    text-shadow: 0 1px 0 #fff;
    border: 1px solid #aaa;
    background: #e3e3e3;
    background: linear-gradient(to bottom,#f6f6f6,#e3e3e3);
    font-size: 9pt;
    padding: 3px 8px;
}

.button:active {
    border: 2px solid #aaa;
}

.container-button {
    position: absolute;
    top: 25%;
    left: 10px;
    right: 0;
    bottom: 0;
}

.main {
    background: rgba(242,247,250,.5);
    border-radius: 2.5px;
    padding: 18px;
    margin: auto;
    text-align: center;
    position: relative;
    max-width: 50%;
    margin-top: 25vh;
}

.imager-top-left {
    position: absolute;
    top: 2%;
    left: 0;
    right: 90%;
    bottom: 0;
}

.imager-top-right {
    position: absolute;
    top: 2%;
    left: 90%;
    right: 0;
    bottom: 0;
}

.imager-bottom-left {
    position: absolute;
    top: 85%;
    left: 0;
    right: 90%;
    bottom: 2%;
}

.imager-bottom-right {
    position: absolute;
    top: 85%;
    left: 90%;
    right: 0;
    bottom: 2%;
}

.letter {
    font-size: 13rem;
    font-weight: bold;
}

.container-ups {
    font-weight: 600;
    color: #4f565e;
    padding-bottom: 10px;
}

@media (max-width: 1100px) {
    .main {
        max-width: 70%;
    }
}

@media (max-width: 900px) {
    .button {
        padding: 5px 10px;
        font-size: 10pt;
    }

    .main {
        margin-top: 10vh;
        max-width: 50%;
    }

    .imager-top-left {
        position: absolute;
        right: 70%;
    }

    .imager-top-right {
        position: absolute;
        left: 70%;
    }

    .imager-bottom-left {display: none}
    .imager-bottom-right {display: none}

    .letter {
        font-size: 8rem;
        display: block;
    }
}