body {
    font-family: Arial, sans-serif;
    text-align: center;
}

.container {
    display: flex;
    justify-content: space-around;
    margin-top: 20px;
}

.figure {
    text-align: center;
    margin: 20px;
}

.rectangle {
    width: 100px;
    height: 50px;
    background-color: lightblue;
    border: 2px solid black;
    margin: auto;
}

.triangle {
    width: 0;
    height: 0;
    border-left: 50px solid transparent;
    border-right: 50px solid transparent;
    border-bottom: 100px solid lightcoral;
    margin: auto;
}

input {
    width: 60px;
    margin: 5px;
}

button {
    margin-top: 10px;
    padding: 5px 10px;
    background-color: #4CAF50;
    color: white;
    border: none;
    cursor: pointer;
}

button:hover {
    background-color: #45a049;
}