menghidupkan perubahan warna latar belakang warna
<body [ngClass]="{'short': condition, 'long': !condition }">
...
</body>
.short {
background-color: blue;
transition: all 0.5s 0s ease-in;
}
.long {
background-color: red;
transition: all 1s 0s ease-in;
}
MitchAloha