Thinking about night mode

[Imperat]

body {
background-color: black !important;
}

h1 {
color: #a6a6a6 !important;
}
h2 {
color: #a6a6a6 !important;
}
h3 {
color: #a6a6a6 !important;
}
h4 {
color: #a6a6a6 !important;
}
h5 {
color: #a6a6a6 !important;
}

.navbar {
margin-left: 0px !important;
margin-right: 0px !important;
border-radius: 0px !important;
border-color: #6b6b6b !important;
}

input {
background-color: #6b6b6b !important;
border-radius: 0px !important;
}

button {
border-radius: 0px !important;
}