body {font-family: Calibri, Ariel, Verdana, sans-serif;}
img {width:100px;}

.flex-container1 {
    display: flex;
    height:300px;
    justify-content: center;
    align-items: center;
    background-color: purple;
}
.flex-container1 .ruta { background-color:white; width:100px;}

.flex-container2 {
    display: flex;
    height:300px;
    justify-content: space-around;
    align-items: flex-start;
    background-color: lightblue;
}
.flex-container2 .ruta { background-color:red; width:100px; }
.flex-container2 .ruta:nth-child(odd) { background-color:blue; align-self: flex-end;}

.flex-container3 {
    display: flex;
    flex-direction: column;
    height:500px;
    justify-content: center;
    align-items: center;
    background-color:  lightgreen;
}
.flex-container3 .ruta { background-color:blue; width:300px; border:1px black solid; text-align:center;}

.flex-container4 {
    display: flex;
    flex-direction: row;
    flex-wrap: wrap;
    width:800px;
    height:300px;
    justify-content: space-between;
    /*align-items: stretch;*/
    background-color: white;
    margin:auto;
    border:5px rgb(18, 136, 18) solid;
}
.flex-container4 .ruta { background-color:rgb(245, 65, 65); width:98px; height:98px; border:1px black solid; 
    display:flex; justify-content: center; align-items: center; }
.flex-container4 .spec { background-color:rgb(37, 37, 247); width:298px; }
.flex-container4  img {width:50px;}