style.css

body {
    background-color: black;
}
.post {
    background-color: white;
}

.container {
    display: flex;
    width: 50%; 
    border: 1px solid black;
    margin: 0 auto;
}

.post-header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 5px;
}
.titulo1 {
    margin-left: 5px;
}

/* .fa-css3-alt {
    font-size: 50px;
    padding: 5%;
    float: left;
}

.fa-ellipsis-vertical {
    font-size: 60px;
    margin: 8px 15px 8px 0px;
    padding: 5px;
    float: right;
} */

img {
    width: 100%;
    height: 400px;
}

.post-header-left {
    display: flex;
}

.titulo1 b {
    display: block;
}

/* .fa-bookmark {
    float: right;
} */

.post-icons {
    display: flex;
    justify-content: space-between;
    padding: 5px;
}

.texto {
    padding: 5px;
}
i {
    font-size: 40px;
}