.open-sans {
    font-family: "Open Sans", sans-serif;
    font-optical-sizing: auto;
    font-weight: 400;
    font-style: normal;
    font-variation-settings: "wdth" 75;
}
body, html {
    margin: 0;
    padding: 0;
    height: 100%;
}
body {
    text-align: center;
    font-family: "Open Sans", Arial, Helvetica, sans-serif;
    color: #C1C1C1;
    font-size: 16px;
    line-height: 145%;
}
a {
    display: block;
    text-decoration: none;
}
a, a:visited {
    color: inherit;
}
main {
    width: 100%;
    height: 100%;
    background-color: #2b3541;
    background: 180px;background: linear-gradient(0deg, rgba(13,16,21,1) 0%, rgba(92,117,152,1) 100%);
}
#container {
    box-sizing: border-box;
    /*border: 1px solid rgba(0,0,0,0.15);*/
    position: absolute;
    width: 300px;
    height: 620px;
    left: 0;
    right: 0;
    top: 0;
    bottom: 0;
    margin: auto;
    width: 320px;
    background-image: url(img/logo.png);
    background-size: 254px auto;
    background-repeat:no-repeat;
    background-position: 50% 0;
    padding-top: 105px;
}
.msg {
    font-weight: 300;
    font-style: italic;
    color: #C0E4E4;
}
#btns {
    margin: 30px 0;
}
#btns a {
    border: 2.5px solid #C1C1C1;
    width: 235px;
    margin: 15px auto;
    padding: 8px 0;
    font-weight: 600;
    font-variation-settings: "wdth" 90;
    font-size: 120%;
    border-radius: 10px;
    transition: 0.5s ease;
}
#btns a:hover {
    width: 250px;
    color: white;
    border-color: white;
}
p.note {
    font-size: 80%;
    color: #C0E4E4;
}

@media only screen and (max-width: 500px) {
    body {
        font-size: 19px;
    }
    #container {
        position: relative;
        height: auto;
        margin: auto;
        width: 320px;
    }
    main {
        padding: 40px 0;
    }
    #btns a {
        width: 260px;
        margin: 18px auto;
        padding: 10px 0;
    }
    #btns a:hover {
        width: 275px;
    }

}