body{
   margin: 0;
   padding: 0;
   background: linear-gradient(45deg, #fd5900, #003bfc);
   height: 100vh;
   font-family: 'Fredoka', sans-serif;
}

.calculator{
   display: flex;
   flex-direction: column;
   align-items: center;
   justify-content: center;
   min-height: 100vh;
}

.buttons{
   display: flex;
   flex-direction: column;
}

button{
   height: 80px;
   width: 80px;
   font-size: 35px;
   font-family: 'Fredoka', sans-serif;
   font-weight: 600;
   background-color: rgba(255, 255, 255, 0.5);
   color: #fff;
   border: 0.5px solid #fff
}

button:hover{
   background-color: rgba(255, 255, 255, 0.8);
   color: rgb(80, 80, 80);
}

.is-two{
   width: 160px;
}

.row{
   display: flex;
}

.display{
   min-height: 100px;
   max-height: auto;
   background-color: rgba(0, 0, 0, 0.5);
   color: #fff;
   display: flex;
   flex-direction: column;
   justify-content: space-around;
   text-align: end;
   width: 320px;
   padding: 10px;
   max-width: 300px;
   overflow-wrap: break-word;
}

.current-number{
   font-size: 50px;
}

.previous-number{
   opacity: 0.8;
   font-size: 20px;
}