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#alert1 {
    border-radius: 0px;
    top: 0;
    right: 0;
    padding: 8px;
    text-align: left;
    background: rgba(22, 160, 133,0.7);
    color: #FFF;
    margin-bottom: 4px;
}

#alert1:before {
    content: "";
    display: inline-block;
    font-family: "Font Awesome 5 Free";
    font-weight: 900;
    font-size: inherit;
    text-rendering: auto;
    margin-right: 5px;
    font-size: 13px;
    content: "\f0e7";
    color: #f1f1f1;
}

#alert2 {
    background: #8a47a5;
    border-radius: 0px;
    top: 0;
    right: 0;
    padding: 8px;
    text-align: left;
    color: #FFF;
    margin-bottom: 4px;
}

#alert2:before {
    content: "";
    display: inline-block;
    font-family: "Font Awesome 5 Free";
    font-weight: 900;
    font-size: inherit;
    text-rendering: auto;
    margin-right: 5px;
    font-size: 13px;
    content: "\f0eb";
    color: #f1f1f1;
}

#alert3 {
    border-radius: 0px;
    top: 0;
    right: 0;
    padding: 8px;
    text-align: left;
    background: #5962b6;
    color: #FFF;
    margin-bottom: 4px;
}

#alert3:before {
    content: "";
    display: inline-block;
    font-family: "Font Awesome 5 Free";
    font-weight: 900;
    font-size: inherit;
    text-rendering: auto;
    margin-right: 5px;
    font-size: 13px;
    content: "\f0f3";
    color: #f1f1f1;
}

#alert4 {
    background: #b6596b;
    border-radius: 0px;
    top: 0;
    right: 0;
    padding: 8px;
    text-align: left;
    color: #FFF;
    margin-bottom: 4px;
}

#alert4:before {
    content: "";
    display: inline-block;
    font-family: "Font Awesome 5 Free";
    font-weight: 900;
    font-size: inherit;
    text-rendering: auto;
    margin-right: 5px;
    font-size: 13px;
    content: "\f559";
    color: #f1f1f1;
}

<div id = 'alert1'> announcement 1</div>
<div id = 'alert2'> announcement 2</div>
<div id = 'alert3'> announcement 3</div>
<div id = 'alert4'> announcement 4</div><br />