.im-card-header {
    display: flex;
    justify-content: center;
    align-items: center;

}
.im-card-header div:nth-of-type(1) {flex-grow: 1;}
.im-card-header div:nth-of-type(2) {flex-grow: 4;}
.im-card-header div:nth-of-type(3) {flex-grow: 0;}
.im-card-header-title {
    font-size: 18px;
    margin:15px 0 5px 10px;
    padding:0;  
    color:rgba(0, 0, 0, 0.87);
}
.im-card-header-subtitle {
    font-size: 14px;
    margin-left:10px;
    color:rgba(0, 0, 0, 0.54); 
    
}