style.css (web calkulator)

*{
    box-sizing: border-box;
}

body{
    font-family: sans-serif;
}

.flex-container-column{
    display: flex;
    flex-direction: column;

    /*properti pendukung*/
    max-width: 800px;
    margin: 0 auto;
    text-align: right;
}

.flex-container-row{
    display: flex;
}

.button{
    flex-basis: 25%;

    /*properti pendukung*/
    font-size: 1.5em;
    text-align: center;
    padding: 40px;
    border: 1px solid black;
    background: -webkit-linear-gradient(top, #d2d2d2, #ddd);
    cursor: pointer;

}

.double{
    flex-basis: 50%;
}

.display{
    color: white;
    width: 100%;
    padding: 10px 20px;
    background-color: #333333;
    border: 1px solid black;
    font-size: 2em;
}

.operator,
.negative,
.equals{
   background: orange;
}

.card{
    box-shadow: 0 4px 8px 0 rgba(0, 0, 0, 0.2);
    border-radius: 5px;
    padding: 30px;
    margin-top: 20px;
}

.button:hover{
    font-weight: bold;
    background: red;
}

@media screen and (max-width: 513px){
    .button{
        padding: 10px;
    }
}