style.css

body{
    background: #2c3e50;
}
.content{

    display: inline-block;
    padding: 0px;
    margin:20px 20px 20px 200px;
}

.flexed{
    display:flex;
}

#gameArea{
    background: #e78e40;
    margin: 0px;
    border : 1px solid black;
}

.sidebar{
    display: inline-block;

    width: 400px;
    text-align:center;
    padding-top :100px;
    padding-left: 100px;
}

.play{
    color:white;
    background: #e67e22;
    line-height: 3em;
    font-size: 2em;
    font-weight: 700;
    font-family: Helvetica;
    border: 1px solid #333;
    border-radius: 20px;
    height: 100px;

    margin: 20px 50px;
}

.show{
    background: white;

    line-height: 3em;
    font-size: 1.5em;
    color:#e67e22;
    border:0px;
    border-radius: 10px;
    margin: 20px;
}

.alert{
  font-size: 2em;
  color : #e78e40;
}

.action{
      color:white;
      display: inline-block;
      width:80px;
      background: #e67e22;
      line-height: 1.8em;
      font-size: 1.3em;
      font-family: Helvetica;
      border: 1px solid #333;
      border-radius: 10px;
      padding: 5px;
      margin:5px;
      cursor: pointer;
}
.action:hover{
    color:#e67e22;
    background-color: white;
    width: 85px;
    font-weight: 600;
}