*{
     margin: 0;
     padding: 0;
     box-sizing: border-box;
}


#control{
     position: fixed;
     bottom: 0;
     left: 10%;
     text-align: center;
}

#jjjj{
     position: fixed;
     display: block;
     margin: 0 auto;
     transform: rotate(180deg);
     height: 40vh;

}

.icon{
     width: 100px;
     height: 100px;
     border-radius: 100%;
     border: 1px solid #000;
}

.icon:hover{
     border: 2px solid red;
}