styles.css

* {
    -webkit-box-sizing: border-box;
    -moz-box-sizing: border-box;
    box-sizing: border-box;
}

html {
    font-size: 14px;
}

body {
    font-family: 'Open Sans', sans-serif;
    font-size: 1em;
    position: absolute;
    right: 0;
    left: 0;
    padding: 0 15%;
    -webkit-transition: all .2s ease-in-out;
    -moz-transition: all .2s ease-in-out;
    -ms-transition: all .2s ease-in-out;
    -o-transition: all .2s ease-in-out;
    transition: all .2s ease-in-out;
    text-align: center;
    color: #444;
    background-color: #ebebeb;
    overflow-x: hidden;
    height: 100%;
}

body.open {
    right: -250px;
    left: 250px;
}

a {
    text-decoration: none;
    color: #0099CC;
}
a:hover {
    color: #0084B0;
}
a:active {
    color: #FF633F;
}
.azul {
    color: #0099CC;
}
h1 {
    font-family: 'Exo 2', sans-serif;
}

p {
    text-align: left;
}

#widget-left {
    position: fixed;
    top: 0;
    bottom: 0;
    left: -250px;
    width: 289px;
    -webkit-transition: all .2s ease-in-out;
    -moz-transition: all .2s ease-in-out;
    -ms-transition: all .2s ease-in-out;
    -o-transition: all .2s ease-in-out;
    transition: all .2s ease-in-out;
    text-align: right;
}

#widget-left.open {
    left: 0;
}

#tweet {
    position: absolute;
    top: 0;
    bottom: 0;
    left: 0;
    overflow-y: auto;
    width: 250px;
    padding: 10px;
    text-align: left;
    background: #fff;
}

#tweet ul {
    margin: 0;
    padding: 0;
    list-style: none;
}

#tweet li {
    margin-bottom: 10px;
}

.widget-button {
    display: block;
    margin-top: 50px;
    padding: 10px;
    text-decoration: none;
    -webkit-border-radius: 5px;
    border-radius: 5px;
    background-color: #fff;
}

.logo {
    width: 100%;
    max-width: 400px;
    -webkit-border-radius: 5px;
    border-radius: 5px;
}
.date {
    text-align: right;
    font-size: 80%;
    padding-bottom: 5px;
    border-bottom: 1px solid #EAEAEA;
}