style.css

body{
background-color:#232323;
margin: 0;
font-family: "Montserrat", "Avenir";
}

h1{
  text-align: center;
	line-height: 1.1;
	font-weight: normal;
	color: white;
	background: steelblue;
	margin: 0;
	text-transform: uppercase;
	padding: 20px 0;
}

#game {
	font-size: 200%;
}

#stripe {
	background: white;
	height: 30px;
	text-align: center;
	color: #232323;
  margin-bottom:0;
}

#message {
	display: inline-block;
	width: 30%;
  font-weight: bold;
  font-size: 20px;
}

#start , #mode{
  height: 100%;
	font-weight: 700;
	color: steelblue;
  padding: 0;
  font-size: 20px;
}

#Select_mode , #Select_start{
  width: 120px;
  height: 100%;
  outline: none;
  font-weight: bold;
}

#Select_start{
  width: 100px;
}

td{
  font-size: 70px;
  text-align: center;
  color:#232323;
  width:90px;
  height:110px;
  border-radius: 20% ;
  background-color: #b7bbc9;
  border: 5px solid #232323
}
.container{
  display: flex;
  align-items: flex-start;
}
.score{
  color: white;
  font-size: 20px;
  text-align: center;
  margin: 30px 50px;
  align-self: flex-start;
  visibility: hidden;
}
.points{
  font-size: 30px;
  font-weight: bolder;
}

table{
  margin:15px auto;
}

button{
  position: absolute;
  font-size: 18px;
  border-radius: 8px;
  border: none;
  text-align: center;
  padding: 6.5px 20px;
  background: #e7e7e7;
  color: black;
}
#reset{
  left: 37%;
}
#new{
  left: 52%;
}

button:hover {
 background-color: white;
 color: black;
 border: 3px solid steelblue;
}
td:hover{
  border: 2px solid steelblue;
}