*{padding: 0;
margin: 0;}
.abc{
width: 815px;
height: 226px;
position: relative;
top: 0px;
overflow: hidden;
display: flex;
justify-content: center;
box-shadow: 5px 5px 15px #f5f4f4;}
.bc{transition:2s;
overflow: hidden;}
.bc:hover{flex-shrink: 0;
flex-grow: 0;}
{width: 815px;}