body{
   display: flex;
   justify-content: center;
   align-items: center;
   height:100vh;
   margin: 0;

}
.calculeter {
   width: 320px;
   background-color:darkslateblue;
   padding: 20px;
   border-radius: 20px;
   box-shadow: 0px 5px 15px rgba(40, 212, 138, 0.889);
}
#display{
   width: 100%;
   font: size 2cm;
   padding: 15px;
   margin-bottom: 20px;
   border: none;
   border-radius: 10px;
   background-color: greenyellow;
   color: black;
   text-align: right;
   box-sizing: border-box;
}
.butten{
   display: grid;
   grid-template-columns: repeat(4, 1fr);
   gap: 12px;
}
button{
   font-size: 30px;
   padding: 10px 0;
   border: none;
   border-radius: 10px;
   cursor: pointer;
   font-weight: bold;
   transition: trasform 0.1s ease;

}
.number{
   background-color: rgb(220, 38, 220);
   color: white;
}
button:hover{
   background-color: aqua;
}

button:active{
   background-color: crimson;
}
.oppreter{
   background-color: darkturquoise;
   color: aliceblue;
}
.Equal{
   background-color: chartreuse;
   color: white;
}
.clear{
   background-color: chocolate;
   color: white;
}