.containerMy{
    width: 100%;
    margin: auto;
    overflow: hidden;
    background: white;
    margin-top: 50px;
}

.containerMy ul{
    padding: 0px;
    margin: 0px;
}


.containerMy ul li{
    float:left;
    list-style: none;
    width:400px;
    height:300px;
    background: white;
    margin :20px 0px 20px 55px; 
    border:2px solid black;
    box-sizing: border-box;
}
.containerMy ul li:hover{
    opacity: 0.8;
}

.containerMy ul li .bottom{
    width: 100%;
    height:50px;
    line-height: 50px;
    background: #40e0d0;    
    text-align: center;
    color:white;
    font-size: 20px;
   
}

@media screen and (max-width:1250px){
    .containerMy ul li{
        width:100%;
        margin-left: 80px;
         
    }