How to resize a block when dragging in css3 and html5?

Question

PHP

Guys hello everyone, such a task has become, it is necessary to implement a change in the width of the block when dragging, just like in Yandex then using angular or pure js. Thanks in advance for advice and directions!

Answer 1

$option_tovar='<label class="input-option7">1111</label><label class="col-sm-4">2222</label>';
preg_match_all('~(input-option7|col-sm-4)">([^<]*)</label>~', $option_tovar, $option_name);
var_dump($option_name);

Answer 2

interactjs.io/#resizing
https://www.google.ru/search?q=drag+and+drop+resiz...