style.css

body {
	font: 'Raleway', sans-serif;
    color: rgba(0,0,0,.5);
    text-align: center;
    text-transform: uppercase;
    letter-spacing: .5em;
    top: 15%;
	background: linear-gradient(to right, red , yellow); /* Standard syntax */
}

h1 {
    font: 600 3.5em 'Raleway', sans-serif;
    color: rgba(0,0,0,.5);
    text-align: center;
    text-transform: uppercase;
    letter-spacing: .5em;
    width: 100%;
}

h3 {
	font: 900 1em 'Raleway', sans-serif;
    color: rgba(0,0,0,.5);
    text-align: center;
    text-transform: none;
    letter-spacing: 0.01em;

}

button {
    background: linear-gradient(to right, red , yellow, green, blue, white, black);
    box-shadow: 2px 2px 5px black;
    color: white;
    text-shadow: 2px 2px 2px black;
    text-transform: uppercase;
    padding: 15px 25px;
    border-radius: 50px;
    transition: .3s;
    font-size: .75em;
}

button:hover {
    padding: 25px 35px 25px 35px;
    margin-top: -10px;
    box-shadow: 3px 3px 10px black;
    font-size: .90em;
    }

    .color1{
        transition: .3s;
    }

    .color1:hover{
        margin-top: -10px;
        margin-left: -10px;        
        height: 35px;
        width: 70px;
        box-shadow: 1px 1px 5px black;
    }

    .color2{
        transition: .3s;
    }

    .color2:hover{
        margin-top: -10px;
        margin-right: -10px;
        height: 35px;
        width: 70px;
        box-shadow: 1px 1px 5px black;
    }