body {
background: #f0f2f5;
font-family: tahoma;
}
img {
    width: 240px;
    margin: 15px 516px 0px;
}
.contentt {
    border-radius: 8px;
    box-shadow: 0 2px 4px rgb(0 0 0 / 10%), 0 8px 16px rgb(0 0 0 / 10%);
    margin: auto;
     padding: 0px 0 50px 0;
    width: 396px;
    background: #fff;
}
.contentt h2 {
    text-align: center;
    padding: 24px 0 16px 0;
}
.color1 {
    margin: 10px 29px;
    background: #000;
    padding: 20px 10px;
    border-radius: 5px;
 cursor: pointer;
    display: inline-block;
}
.changenow {
    padding: 15px 55px;
    background: #1977f2;
    text-decoration: none;
    color: #fff;
    margin: 0px 98px;
}
form {
    text-align: center;
}
input[type="text"], input[type="password"] {
    padding: 16px 10px;
    width: 85%;
    font-size: 15px;
}
input[type="submit"] {
    margin: 10px;
    padding: 17px;
    width: 90%;
    background: #1977f2;
    color: #fff;
    border: none;
    cursor: pointer;
}
@media only screen and (max-width: 620px) {
.contentt {
    border-radius: 8px;
    box-shadow: 0 2px 4px rgb(0 0 0 / 10%), 0 8px 16px rgb(0 0 0 / 10%);
    margin: auto;
    padding: 0px 0 50px 0;
    width: 100%;
    background: #fff;
}

.color1 {
    margin: 10px 59px;
    background: #000;
    padding: 20px 10px;
    border-radius: 5px;
    cursor: pointer;
    display: inline-block;
}
.changenow {
    padding: 15px 55px;
    background: #1977f2;
    text-decoration: none;
    color: #fff;
    margin: 0px 52px;
}
img {
    margin: 15px 76px 0px;
}
}