style.css

@import url('https://fonts.googleapis.com/css2?family=Nunito:ital,wght@1,300&display=swap');


* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
    font-family: "nunito";
    color: #000;
}

.container {
    width: 100%;
    min-height: 100%;
    background-color: #08AEEA;
    background-image: linear-gradient(0deg, #08AEEA 0%, #2AF598 100%);
    color: #fff;
    min-width: 150%;
    position: fixed;
}

.inner-container {
    margin: 60px 300px;
    border: 1px solid #fff;
    padding: 50px;
    background: #fff;
    border-radius: 20px;
    width: 650px;
    height: inherit;
}

.input-area h1 {
    font-size: 40px;
    margin-bottom: 20px;
}

.input-area input {
    width: 350px;
    font-size: 20px;
    background: rgb(241, 240, 240);
    padding: 20px;
    border: none;
    border-radius: 20px;
    outline: none;

}

.input-area button {
    padding: 20px;
    font-size: 20px;
    font-weight: 700;
    border: 1px solid #2AF598;
    background-color: transparent;
    color: #fff;
    border-radius: 40px;
    cursor: pointer;
    transition: all 0.4s;
    margin-left: 20px;
    color: #000;
}

.input-area button:hover {
    background-color: #2AF598;
    border-color: #2AF598;
    color: #fff;
}

::placeholder {
    color: #000;
}

.output-area h1 {
    margin-top: 15px;
    font-size: 30px;
    font-weight: 800;
}

.output-area p {
    margin-top: 20px;
    font-size: 25px;
    border: 1px solid #08AEEA;
    border-radius: 20px;
    padding: 10px;
    font-weight: 600;
}

.output-area p {
    display: flex;
    justify-content: space-between;
}

a {
    text-decoration: none;
}

span {
    cursor: pointer;
    border: 1px solid lightslategrey;
    padding: 5px;
    border-radius: 5px;
    transition: all 0.3s;
    width: 30px;
    height: inherit;
    text-align: center;
}

span:hover {
    background-color: lightslategrey;
}

.cross-button {
    padding: 5px;
    border: 1px solid lightgray;
    border-radius: 10px;
    cursor: pointer;
    background-color: inherit;
    font-size: 20px;
    transition: all 0.4s;
}

.cross-button:hover {
    background-color: lightgray;
}