.css

html {
    background-color: gray;
    background-size: cover;
}

body {
    color: gray;
}

.blue-dot {
    width: 50px;
    height: 50px;
    background: cyan;
    position: absolute;
    -webkit-transition: width 2ms, height 4ms;
    transition: width 2s, height 4s;
    border-radius: 150px;
    top: 350px;
    left: 350px;
}

.blue-dot:hover {
    width: 300px;
    height: 300px;
}

.red-dot {
    width: 100px;
    height: 100px;
    background: magenta;
    position: absolute;
    -webkit-transition: width 2ms, height 4ms; 
    transition: width 2s, height 4s;
    border-radius: 150px;
    top: 550px;
    left: 200px;
    
}

.red-dot:hover {
    width: 300px;
    height: 300px;
}

.yellow-dot {
    width: 150px;
    height: 150px;
    background: yellow;
    position: absolute;
    -webkit-transition: width 2ms, height 4ms;
    transition: width 2s, height 4s;
    border-radius: 150px;
    top: 450px;
    left: 650px;
}

.yellow-dot:hover {
    width: 300px;
    height: 300px;
}

.black-dot {
    width: 200px;
    height:200px;
    background: black;
    position:absolute;
    -webkit-transition: width 2ms, height 4ms;
    transition: width 2s, height 4s;
    border-radius: 150px;
    
}

.black-dot:hover {
    width: 300px;
    height:300px;
}

.magenta-dot {
    width: 250px;
    height:250px;
    background:magenta;
    position: absolute;
    -webkit-transition: width 2ms, height 4ms;
    transition: width 2s, height 4s;
    border-radius: 150px;
    top: 100px;
    left: 500px;
    
}

.magenta-dot:hover {
    width: 300px;
    height: 300px;
}

.cyan-dot {
    width: 50px;
    height:50px;
    background:cyan;
    position: absolute;
    -webkit-transition: width 2ms, height 4ms;
    transition: width 2s, height 4s;
    border-radius: 150px;
    top: 100px;
    left: 50px;
}

.cyan-dot:hover {
    width: 300px;
    height:300px;
}

.yellow-dot-two {
    width: 40px;
    height:40px;
    background:yellow;
    position:absolute;
    -webkit-transition: width 2ms, height 4ms;
    transition: width 2s, height 4s;
    border-radius: 150px;
}

.yellow-dot-two:hover {
    width: 300px;
    height:300px;
}

.magenta-dot-two {
    width: 20px;
    height:20px;
    background:magenta;
    position: absolute;
    -webkit-transition: width 2ms, height 4ms;
    transition: width 2s, height 4s;
    border-radius: 150px;
    top: 100px;
    left:250px;
}

.magenta-dot-two:hover {
    width:300px;
    height:300px;
}

.cyan-dot-two {
    width: 150px;
    height:150px;
    background:cyan;
    position: absolute;
    -webkit-transition: width 2ms, height 4ms;
    transition: width 2s, height 4s;
    border-radius: 150px;
    top:200px;
    left:600px;
}

.cyan-dot-two:hover {
    width:300px;
    height:300px;
}

.blue-dot2 {
    width: 100px;
    height: 100px;
    background: cyan;
    position: absolute;
    -webkit-transition: width 2ms, height 4ms;
    transition: width 2s, height 4s;
    border-radius: 150px;
    top: 650px;
    left: 1000px;
}

.blue-dot2:hover {
    width: 300px;
    height: 300px;
}

.red-dot2 {
    width: 200px;
    height: 200px;
    background: magenta;
    position: absolute;
    -webkit-transition: width 2ms, height 4ms; 
    transition: width 2s, height 4s;
    border-radius: 150px;
    top: 450px;
    left: 1000px;
    
}

.red-dot2:hover {
    width: 300px;
    height: 300px;
}

.yellow-dot2 {
    width: 250px;
    height: 250px;
    background: yellow;
    position: absolute;
    -webkit-transition: width 2ms, height 4ms;
    transition: width 2s, height 4s;
    border-radius: 150px;
    top: 150px;
    left: 950px;
}

.yellow-dot2:hover {
    width: 300px;
    height: 300px;
}

.black-dot2 {
    width: 50px;
    height:50px;
    background: black;
    position:absolute;
    -webkit-transition: width 2ms, height 4ms;
    transition: width 2s, height 4s;
    border-radius: 150px;
    top:250px;
    left:850px;
    
}

.black-dot2:hover {
    width: 300px;
    height:300px;
}

.magenta-dot2 {
    width: 30px;
    height:30px;
    background:magenta;
    position: absolute;
    -webkit-transition: width 2ms, height 4ms;
    transition: width 2s, height 4s;
    border-radius: 150px;
    top: 100px;
    left: 980px;
    
}

.magenta-dot2:hover {
    width: 300px;
    height: 300px;
}

.cyan-dot2 {
    width: 150px;
    height:150px;
    background:cyan;
    position: absolute;
    -webkit-transition: width 2ms, height 4ms;
    transition: width 2s, height 4s;
    border-radius: 150px;
    top: 500px;
    left: 50px;
}

.cyan-dot2:hover {
    width: 300px;
    height:300px;
}

.yellow-dot-two2 {
    width: 80px;
    height:80px;
    background:yellow;
    position:absolute;
    -webkit-transition: width 2ms, height 4ms;
    transition: width 2s, height 4s;
    border-radius: 150px;
    top: 300px;
    left: 40px;
}

.yellow-dot-two2:hover {
    width: 300px;
    height:300px;
}

.magenta-dot-two2 {
    width: 120px;
    height:120px;
    background:magenta;
    position: absolute;
    -webkit-transition: width 2ms, height 4ms;
    transition: width 2s, height 4s;
    border-radius: 150px;
    top: 400px;
    left:550px;
}

.magenta-dot-two2:hover {
    width:300px;
    height:300px;
}

.cyan-dot-two2 {
    width: 50px;
    height:50px;
    background:cyan;
    position: absolute;
    -webkit-transition: width 2ms, height 4ms;
    transition: width 2s, height 4s;
    border-radius: 150px;
    top:300px;
    left:900px;
}

.cyan-dot-two2:hover {
    width:300px;
    height:300px;
}