body {
  background-color:gray;
  color: black;
  font-family: "Franklin Gothic Medium", "Arial Narrow", Arial, sans-serif;
  font-size: xx-large;
  justify-content: center;
  align-items: center;
  text-align: center;
}

.calculator {
 display: flex;
 align-items: center;
}
.display-result {
  height: 50px; 
  width: 100%;
  max-width: 400px; 
  background:whitesmoke;
  color:black;
  font-size: 2rem;
  text-align: center;
  display: flex; 
  align-items: center; 
  justify-content: left; 
  padding: 10px;
  border-radius: 8px;
  margin: 0 auto 20px auto; 
  box-sizing: border-box; 
  border: #09d0c3 solid 4px;
  
}
button {
  width: 100px;
  height: 60px;
  background-color: white;
  color: black;
  font-size: xx-large;
  border: none;
  border-radius: 8px;
  transition: 0.3s ease-in-out;
}
button:hover {
  background-color:#056861;
  color: white;
  cursor: pointer;
  box-shadow:0 0 20px  white;
  transform: scale(1.05);
}
.button-colums {
  margin-top: 6px;
}
.equal-button {
  background-color: #09d0c3;
  width: 208px;
}
.equal-button:hover{
  background-color: #056861;
}
.clear-button {
  color: red;
}
img{
  width: 30px;
  height: 25px;
}