*{
    margin: 0;
    padding: 0;
}
body{
    background-color: bisque;
    display: flex;
    justify-content: center;
    align-items: center;
    height: 100vh;
}
.container-404{
    display: flex;
    justify-content: center;
    align-items: center;
    width: 10%;
    height: 100%;
}
#number4{
    position: fixed;
    width: 450px;
    height: 550px;
    margin-left: 200px;
    animation-name: floating1;
    animation-duration: 4s;
    animation-iteration-count: infinite;
    transition: 0.7s ease;
}
#number0{
    position: fixed;
    width: 300px;
    height: 350px;
    margin-left: 0px;
    animation-name: floating2;
    animation-duration: 3s;
    animation-iteration-count: infinite;
    transition: 0.7s ease;
}
#second-number4{
    position: fixed;
    width: 450px;
    height: 550px;
    margin-left: -400px;
    animation-name: floating3;
    animation-duration: 4s;
    animation-iteration-count: infinite;
    transition: 0.7s ease;
}
.not-found-text{
    position: absolute;
    margin-top: 300px;
    font-family:Cambria, Cochin, Georgia, Times, 'Times New Roman', serif;
    font-size: 30px;
    color: rgb(190, 92, 0);
    font-weight: 700;
    margin-left: 20px;
}
@keyframes floating1 {
0%{
    margin-top: 0px;
}

50%{
    margin-top: 20px;
}
75%{
    margin-top: -5px;
}
100%{
    margin-top: 0px;
}
}

@keyframes floating2 {
0%{
    margin-top: 0px;
}

50%{
    margin-top: 20px;
}
75%{
    margin-top: -10px;
}
100%{
    margin-top: 0px;
}
}

@keyframes floating3 {
0%{
    margin-top: 0px;
}

50%{
    margin-top: 20px;
}
100%{
    margin-top: -8px;
}
}