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%;
}

h6 {
    overflow-wrap: break-word;
}

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

h3:hover {
    color:white;
}

input[type=color] {
    margin: 20px;
    padding: 20px;
    outline: none;
    transition: 0.1s;
    font-family: "Arial";
    background-color: rgba(255, 255, 255, 0.5);
    border-radius: 5px;
    border: none;
}

input[type=color]:hover {
    border-radius: 15px;
    background-color: rgba(255, 255, 255, 0.8);
}

input[type=color]:focus {
    background-color: rgba(255, 255, 255, 0.8);
    border-radius: 15px;
}

#color3 {
    font-family: Arial, Calibri;
    border-radius: 10px;
    font-size: 1.2em;
    outline: none;
    text-align: center;
    padding: 20px;
    width: 55%;
    transition: 1s;
    font-family: inherit;
    border: none;
    background-color: rgba(255,255,255,0.5);
}

#color3:hover {
    background-color: rgba(255,255,255,1);
    font-size: 1.3em;
}

#clipboard {
    margin: 10px;
    width: 40px;
    height: 40px;
    transition: 0.5s
}

#clipboard:hover {
    cursor: pointer;
    width: 50px;
    height: 50px;
}

.container {
    display: flex;
    flex-wrap: nowrap;
    justify-content: center;
}

.container-tooltip {
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    text-align: center;
    margin: 0px 25% 0px 25%;
}

footer {
    text-align: center;
    font-family: Arial;
}

.container-tooltip > p {
    letter-spacing: 2px;
    font-family: Arial;
    text-align: center;
    font-size: 1.2em;
    color: rgba(255,255,255,0.8);
    word-wrap: break-word;
    text-transform: none;
    transition: 0.5s;
}

p:hover {
    color: rgba(255,255,255,1);
}