* {
    margin: 0;
    padding: 0;
    border: 0;
    vertical-align: baseline;
    text-decoration: none;
    list-style: none;
}

body {
    background-color: #F3F3F3;
    height: 100vh;
    position: relative;
}

h1 {
    position: absolute;
    height: 1px;
    left: -1000000;
    overflow: hidden;
    top: auto;
    width: 1px;
}