body {
    min-height: 100vh;
    background-image: url("../images/Gym_Dumbbells_For_Working_Out_(193383405).09a3b5f4e93e.jpeg");
    background-size: cover;
    background-position: center;
    background-repeat: no-repeat;
    background-attachment: fixed;
}

.error-404-background {
    background-image: url("../images/59766cc8c51aaf431.73780060.b0310832dcbc.jpg") !important;
    background-size: cover !important;
    background-position: center !important;
    background-repeat: no-repeat !important;
    background-attachment: fixed !important;
}