@import"https://fonts.cdnfonts.com/css/calculator";*{box-sizing:border-box;margin:0;padding:0}.background{position:absolute;width:100%;height:100%;background:#add8e6}.container{position:absolute;left:50%;top:50%;transform:translate(-50%,-50%);background-color:gray;width:250px;height:400px;border:1px solid black;border-radius:15px;display:flex;flex-direction:column;align-items:center;row-gap:5px;padding:10px}form{width:100%;display:flex;justify-content:center;align-items:center;border-radius:0;height:20%}.screen{border-radius:5px;height:100%;width:95%;text-align:right;font-weight:700;font-family:Calculator;padding-right:10px;font-size:2rem}.buttonContainer{display:grid;width:100%;height:100%;padding:10px;border-bottom-right-radius:15px;border-bottom-left-radius:15px;grid-template-columns:repeat(4,1fr);grid-template-rows:repeat(5,1fr);grid-column-gap:15px;grid-row-gap:15px;text-align:center}.parent *{border-radius:5px;background-color:#d3d3d3}.parent *:hover{background-color:#fff}.div1{grid-area:1 / 1 / 2 / 2}.div2{grid-area:1 / 2 / 2 / 3}.div3{grid-area:2 / 1 / 3 / 2}.div4{grid-area:2 / 2 / 3 / 3}.div5{grid-area:2 / 3 / 3 / 4}.div6{grid-area:2 / 4 / 3 / 5}.div7{grid-area:3 / 1 / 4 / 2}.div8{grid-area:3 / 2 / 4 / 3}.div9{grid-area:3 / 3 / 4 / 4}.div10{grid-area:3 / 4 / 4 / 5}.div11{grid-area:4 / 1 / 5 / 2}.div12{grid-area:4 / 2 / 5 / 3}.div13{grid-area:4 / 3 / 5 / 4}.div14{grid-area:4 / 4 / 5 / 5}.div15{grid-area:5 / 1 / 6 / 2}.div16{grid-area:5 / 2 / 6 / 3}.div17{grid-area:5 / 3 / 6 / 4}.div18{grid-area:5 / 4 / 6 / 5}