body{
    image-rendering: optimizeSpeed;  
    background-color: #000000;
    background-image: url("https://www.transparenttextures.com/patterns/grid-me.png");
    color:white;
    text-align: center;
    z-index: 10
}

.random {
    position: absolute;
    z-index: 1; /* Por debajo del texto */
    border: 1px solid rgba(255, 255, 255, 0.1);
}

.img-1 { top: 30%; left: 10%;}
.img-2 { top: 49%; left: 88%;}
.img-3 { top: 101%; left: 50%;}