@import url('https://fonts.googleapis.com/css?family=Muli&display=swap'); 

* {
  box-sizing: border-box;
}

body {
  font-family: 'Muli', sans-serif;
}
.containerT {
    width: 100%;
    display: flex;
    padding: 0 10px;
}
.slideT {
    height: 50vh;
    border: #fff solid 1px;
    border-radius: 15px;
    margin: 5px;
    cursor: pointer;
    color: #fff;
    flex: 1;
    background-size: cover;
    background-position: center;
    background-repeat: no-repeat;
    position: relative;
    transition: all 0.5s ease-in-out;
}

.slideT h3 {
    position: absolute;
    font-size: 28px;
    top: 10px;
    left: 10px;
    margin: 0;
    opacity: 0;
}
.slideT.active {
    flex: 15;
}
.slideT.active h3 {
    opacity: 1;
    transition: opacity 0.5s ease-in-out 0.6s;
}