*{
    padding: 0;
    margin: 0;
    font-family: Arial, Helvetica, sans-serif;
}
header{
    background-image: linear-gradient(to right,#147AC5,#62A0D7, #147AC5,#62A0D7,#147AC5);
    height: 100px;
    
}

header > h1{
    text-align: center;
    color: white;
    position: relative;
    left: 50%;
    top: 50%;
    transform: translate(-50%,-50%);
    display: inline-block;
}
header > div {
    text-align: center;
    display: inline-block;
    position: fixed ;
    left: 90%;
    top: 10px;
    color: white;
    width: 150.25px;
    cursor: pointer;
}
header > div:hover {
    opacity: .6;
    }
.quadro{
    width: 30%;
    height: 300px;
    position: fixed;
    left: 50%;
    top: 50%;
    transform: translate(-50%, -50%);
    background-color: #F2F2F2;
    text-align: center;
    min-width: 250px;
    margin-top: 10px;

}
.quadro > h2{
    padding: 10px;
}
hr{
    margin-bottom: 50px;
}
.botao{
    display: block;
    border: none;
    margin: auto;
    position: relative;
    width: 80%;
    height: 35px;
    margin-bottom: 15px;
    font-size: 20px;
   
}
.botao:focus{
    outline: none;           
}
#bot{
    background-color: #147AC5;
    color: white;
    width: 160px;
    height: 45px;
    border: none;
    font-size: 20px;
}
#bot:hover{
    opacity: .6;
}
footer{
    background-color: #D9D9D9;
    position: fixed;
    bottom:0;
    width: 100%;
    text-align: center;
    padding: 30px 0px 30px 0px;
}
@media screen and (max-width:1552px) {
    header > div {
        text-align: center;
        display: inline-block;
        position: fixed ;
        left: 83%;
        top: 10px;
        color: white;
        width: 100px;
        
    }
}
@media screen and (max-width:719px) {
    header > div {
        text-align: center;
        display: inline-block;
        position: fixed ;
        left: 76%;
        top: 10px;
        color: white;
        width: 70px;
        font-size: 10px;
    }
    header h1{
        font-size: 20px;
        width: 250px;
    }
    .quadro > h2{
        padding: 10px;
        font-size: 18px;
    }
}
@media screen and (max-height:480px) {
    header{
        height: 40px;
    }
    footer{
        padding: 3px 0px 3px 0px;
    }
    header > div {
        top: 0px; 
        width: 100px;
    }
    header > div picture img{
        width: 30px;
        height: 25px;
    }
    .quadro{
        width: 60%;
        height: 190px;
    }
    hr{
        margin-bottom: 10px;
    }
    #bot{
        height: 30px;
    }
}