元のHTML
<div><img src="https://jp-prod.asyncgw.teams.microsoft.com/v1/objects/0-ejp-d2-76d6d035e3feaa10fcd183b78a0007e2/views/imgo" itemscope="" itemtype="http://schema.skype.com/AMSImage" style="width:2868px; height:1320px"><br>
<img src="https://jp-prod.asyncgw.teams.microsoft.com/v1/objects/0-wjp-d1-a7fa052b9811798b6e1960df13c27946/views/imgo" itemscope="" itemtype="http://schema.skype.com/AMSImage" style="width:2868px; height:1320px"><br>
<img src="https://jp-prod.asyncgw.teams.microsoft.com/v1/objects/0-ejp-d3-45ec858c3fad652b3c8414925bf83811/views/imgo" itemscope="" itemtype="http://schema.skype.com/AMSImage" style="width:2868px; height:1320px"><br>
<img src="https://jp-prod.asyncgw.teams.microsoft.com/v1/objects/0-wjp-d4-b9d09730b2c51724d89aee6a081d009f/views/imgo" itemscope="" itemtype="http://schema.skype.com/AMSImage" style="width:2868px; height:1320px"><br>
<img src="https://jp-prod.asyncgw.teams.microsoft.com/v1/objects/0-ejp-d1-f821c3810d3ed3be8c64404d5c66d460/views/imgo" itemscope="" itemtype="http://schema.skype.com/AMSImage" style="width:2868px; height:1320px"><br>
<img src="https://jp-prod.asyncgw.teams.microsoft.com/v1/objects/0-ejp-d4-5ea3426e21f7a56f2a9dfa4cdd870e4c/views/imgo" itemscope="" itemtype="http://schema.skype.com/AMSImage" style="width:2868px; height:1320px"><br>
<img src="https://jp-prod.asyncgw.teams.microsoft.com/v1/objects/0-ejp-d3-2665e774734f6f2a7e2402897f42d9ec/views/imgo" itemscope="" itemtype="http://schema.skype.com/AMSImage" style="width:2868px; height:1320px"><br>
<img src="https://jp-prod.asyncgw.teams.microsoft.com/v1/objects/0-wjp-d2-ed4af952a1cb81d9e2564707f2bcff7f/views/imgo" itemscope="" itemtype="http://schema.skype.com/AMSImage" style="width:2868px; height:1320px"></div>