the border won't show up

Question

#playButton:hover{
border-style: inset;
border-width:25px;
border:25px;
border-radius: 10px;
border-color:#ffffff;
background-color: #bfff00;
}
I want to make the border show up and i don't know why it's not. the color change works but the border won't show, and the inest won't work either please help

Answer 1

Maybe, try remove line n°4: (border:25px) and retry

Answer 2

Try border: 25px solid #fff;
And change border-style too