.masthead {
    height: 30vh;
    /*min-height: 500px;*/
    background-image: url(../img/webinar/webinar-register.jpg);
    background-size: cover;
    background-position: center;
    background-repeat: no-repeat;
}

/* .container{ border: 2px solid green }
.grid-item{ border: 2px solid red; padding: 20px;}
.grid{ border: 1px solid blue} */
.filters ul{
    display: flex;
    justify-content: center;
    list-style: none;
    border-bottom: 2px solid #D9D9D9;
    margin: 5px 0px;
}
.filters ul li{
    display: inline-block;
    text-align: center;
    margin-right: 12px;
    padding: 0 5px 8px 5px;
    font-weight: 500;
    font-size: 16px;
    cursor: pointer;
    position: relative;
    margin-bottom: -2px;
    color: #777;
    transition: 0.3s;
    /*text-transform: uppercase;*/
}
.filters ul li:hover{
    color: #EB2D3A;
}
.filters ul li.is-checked{
    border-bottom: 2px solid #EB2D3A;
}
.filters ul li:last-child{
    margin-right: 0;
}


.grid .grid-item h1{
    background: #EEEEEE;
    height: 150px;
    line-height: 150px;
    color: white;
    font-size: 3em;
    text-align: center;
    margin-bottom: 30px;
}