form-control class to the input
disabled to disable input field.
value="VALUE" to set predefined value.
readonly to set field readonly.
placeholder="..." to input area.
maxlength="6" to input area.
minlength="5" to input area.
input type="text"
input type="password"
input type="tel"
input type="email"
input type="url"
input type="search"
input type="number"
input type="datetime-local"
input type="date"
input type="time"
input type="week"
input type="month"
input type="color"
input type="range"
.custom-select class
multiple to the field
.input-group-prepend class to the div
.input-group-append class to the div
.form-control-file class to the input
.custom-file-input class to the input
.input-group-prepend class to the div
.input-group-append class to the div
float-left class to the text
text-center class to the text
float-right class to the text
is-valid class to the input
is-invalid class to the input
form-horizontal class to the input
form-horizontal class to the input