* {
    moz-transition: all 0.5s ease;
    -o-transition: all 0.5s ease;
    -webkit-transition: all 0.5s ease;
    -ms-transition: all 0.5s ease;
    transition: all 0.5s ease;
}

body {
    color: #000;
    font-family: sans-serif;
    font-size: 1rem;
    background: #FFF;
}



#start {
    width: 100%;
    height: 100vh;
    background: url(../img/bpa.jpg) no-repeat center center;
    background-size: cover;
}