html, body {
    min-height: 100%;
}
body {
    font-family: "Arial", sans-serif;
    background-color: black;
    font-size: 30px;
    background-image: url("back.jpg");

     background-size: 100% 100%;background-repeat: no-repeat;
   
   
}

section {
    text-align: center;
    background:transparent;
     color:#15F4EE;
    
}


.game--container {
    display: grid;
    grid-template-columns: repeat(3, auto);
    width: 306px;
    margin: 50px auto;
}

.cell {
    background: black;
    font-family: "Permanent Marker", cursive;
    width: 100px;
    height: 100px;
    box-shadow: 0 0 5px 2px white;
    border: 2px solid #70fe59;
    cursor: pointer;
    line-height: 100px;
    font-size: 60px;
    text-shadow: 3px 2px #ccff00;
    color:#70fe59
}

.game--restart{
   padding: 12px 20px;
  border-radius: 4px;
  cursor: pointer;
  position: absolute;
  margin-left : -80px;
  box-shadow: 1px 3px 2px;
  font-variant:small-caps;
  background-color:transparent;
  border: dotted;;
  color: #13CA91;
  font-size:20px;
}

.game--restart:hover{
background-color:#d3d3d3;
font-weight: bold;
}

.cell:hover{
background-color:#FF9980
}