css transition property w3schools code example
Example 1: css transition
/*CSS Transition Syntax*/
selector {
transition: property duration timing-function delay|initial|inherit;
}
Example 2: html transition
html.color-theme-in-transition,
html.color-theme-in-transition *,
html.color-theme-in-transition *:before,
html.color-theme-in-transition *:after {
transition: all 750ms !important;
transition-delay: 0 !important;
}