html {
    padding: 0;
    margin: 0;
    color: #ecf1ed;
    background-color: rgb(23, 24, 37);
    font-family: 'Fjalla One', sans-serif;
    animation: fadein 1.5s;
}
header {
    padding: 10px;
    margin: 15px;
}
body {
    margin: 0;
}
footer {
    padding: 5%;
    margin: 15px;
}

h1 {
    color: #fff239;
}

input[type=number] {
    background-color: rgba(52, 73, 94, 0.5);
    color: #ecf0f1;
    border: none;
    outline: none;
    border-radius: 5rem;
    text-align: center;
    width: 100px
}
input[type=text] {
    background-color: rgba(52, 73, 94, 0.5);
    color: #ecf0f1;
    border: none;
    outline: none;
    border-radius: 5rem;
    text-align: center;
    width: 150px;
}
input[type=button] {
    background-color: #ecf0f1;
    border: none;
    outline: none;
    border-radius: 5rem;
    text-align: center;
    
}
input[type=button]:hover {
    background-color: #35b5ff;
    border: 2px solid rgb(0, 63, 157);
    border-radius: 0.5rem;
    
}
* {
    box-sizing: border-box;
}
button {
    border: none;
    background-color: rgb(233, 233, 233);
    width: 20vw;
    height: 10vh;
    padding: 0.5rem 0;
    margin: 0.25vmax;
    font-size: 2rem;
    border-radius: 0.5rem;   
}
button:hover {
    background-color: #35b5ff;
    border: 5px solid rgb(0, 63, 157);
    border-radius: 0.5rem;
}

td {
    text-align: center;
}
.column {
    float: left;
    width: 50%;
    padding:20px;
}
.row:after{
    content: "";
    display: table;
    clear: both;
}
@media screen and (max-width:1000px){
    .column {
        width: 100%;
    }
}