/*
.div1 h1 {
    color: red;
}
*/
.header1 {
    color: red;
    transition: all .5s;

}
.header1:hover {
    color: indigo;
  
    border: 5px solid red;
    background-color: lightyellow;
    transition: all .5s;
}
.btn_1 {
    color: white;
    font-size: 40px;
    background-color: black;
    border: none;
    transition: all .5s;
}
.btn_1:hover {
    color: black;
    background-color: white;
    font-size: 100px;
    border: 5px solid red;
    transition: all .5s;
}
.header2 {
    color: green;
    background-color: magenta;
    border: 5px solid black;
    transition: all .3s;
}
.header2:active {
    color: black;
    background-color: red;
    border-radius: 50%;
    border: none;
    transition: all .3s;
}
.btn_2:active {
    color: midnightblue;
    background-color: olive;
    border-bottom-left-radius: 50%;
    font-size: 50px;
}
.header3 {
    width: 50vw;
    font-size: 40px;
    text-align: center;
    background-color: white;
    border: 5px solid red;
    box-shadow: 5px 8px 15px 5px black ;

}
.btn_3 {
    width: 50%;
    font-size: 50px;
    background-color: black;
    color: white;
}
.btn_3:hover {
    box-shadow: 5px 8px 15px 5px rgba(255, 0, 0, 0.651);
}