.centrado{
    position: absolute;
    width: 100%;
    height: 100%;
    left: 50%;
    top: 50%;
    transform: translate(-50%, -50%);
    -webkit-transform: translate(-50%, -50%);
    display: flex;
    justify-content: center;
    align-content: center;
    background: aliceblue;
}
.centrado form{
    transform: translateY(-10%);
    color: aliceblue;
    display: flex;
    flex-direction: column;
    justify-content: center;
    padding: 20px;
    width: 400px;
}
.form button{
    font-size: 18px;
    font-weight: 500;
    color: aliceblue;
    background: rgba(0, 91, 161, 0.8); 
}
.form button:hover{
   background: rgba(0, 91, 161, 1); 
}
.form img{
    margin: 25px auto;
    width: 250px;
}