change bootstrap textbox focus color code example

Example 1: remove the glow in bootstrap input

.form-control:focus {
  box-shadow: none;
}

Example 2: how to highlight input on focus with box shadow

.form-section-input {
     transition: box-shadow 300ms ease-out;
}

.form-section-input:focus {
   box-shadow: 0px 0px 5px var(--light-blue-bg-color);
}