.wrapwrap{display:flex;justify-content:center;align-items:center;height:100vh;flex-direction:column}.container{position:relative;height:20px;width:300px;border:1px solid grey;border-radius:10px;overflow:hidden;margin:10px}.progress{position:absolute;height:100%;width:100%;background-color:green}.wrapwrap button{border:1px solid black;padding:2px}