.constudylab{backgroundSize:"cover";background-color:#4074f2;background-size:cover;background-position:50%;position:relative;height:300px}.left-div{margin-right:100px;margin-left:95px;width:700px}.right-div{margin-left:180px;margin-right:10px;flex:1}.grid-content{margin-left:10px;margin-right:10px}.circle{width:30px;height:30px;border-radius:50%;background-color:#ffd0fd;display:flex;justify-content:center;align-items:center;font-size:18px;font-weight:560;color:red}