How to make a link "show in full ..." like in VK?

Question

css

It seems like through onclick, but it doesn't work for me...

Answer 1

Content - height:0; transition: all .4s; position: relative;
When you click on Show, you add the active class in full. Active class in css - height: auto;

Answer 2

See here jsfiddle.net/6u7oypma