temp.css

body {
    margin: 0;
    display: flex;
    justify-content: center;
    align-items: center;
    min-height: 100vh;
    background: linear-gradient(to left bottom, lightblue, darkblue);
    font-family: monospace, sans-serif;
    color: blue;
}

.container {
    background: rgba(255, 255, 255, 0);
    padding: 20px;
    border-radius: 10px;
    box-shadow: 0 4px 10px rgba(0,0,0,0.3);
    width: 85%;
    max-width: 450px;
    min-width: 350px;
    display: flex;
    flex-direction: column;
    align-items: center;
}
.heading {
    font-size: 32px;
}
.temp-container {
    width: 100%;
    padding: 15px;
    font-weight: bold;
    font-size: 18px;
}
input {
    width: 220px;
    font-family: monospace;
    float: right;
    padding: 5px;
    outline: none;
    background: rgba(255,255,255,0.3);
    border-color: rgba(255,255,255,0.6);
    color: darkgreen;
    font-size: 18px;
}
input::placeholder {
    color: darkgrey;
}