html,
body {
    height: 100%;
    scroll-behavior: smooth;
}

body {
    color: #000;
    margin: auto;
    padding: 1em;
    user-select: none;
    display: table;
    box-sizing: border-box;
    font: lighter 20px 'ZCOOL KuaiLe', cursive;
    position: relative;
    overflow: hidden;
}

body::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: url('https://1days.neocities.org/assets/img/bg2.jpg') no-repeat center center fixed;
    background-size: cover;
    opacity: 0.3;
    z-index: -1;
}

a {
    color: #0051FF;
    text-decoration: none;
}

h1 {
    margin-top: 0;
    font-size: 3.1em;
}

h2 {
	margin-top: 0;
    font-size: 2em;
}

p {
	margin-top: 0;
	font-weight: lighter;
	font-size: 1em;
}

main {
    margin: 0 auto;
    text-align: center;
    display: table-cell;
    backdrop-filter: blur(5px);
    vertical-align: middle;
}

.btn {
    color: #fff;
    box-sizing: border: box;
    padding: 12px 22px;
    background-color: #0051FF;
    border-radius: 50px;
    border: none;
    display: inline-block;
    cursor: none;
    transition: opacity .3s, transform .3s;
}

.btn:hover {
    transition: 0.2s;
    transform: scale(1.1);
    outline: #0051FF solid 2px;
    outline-offset: 4px;
}

.btn:active {
    opacity: .7;
}